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NAGAI KantoUniversity Hospital / Orthopedic SurgeryAssistant Professor
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■ Award- 2026 Outstanding Author, Annals of Joint, Evaluation of the anterior cruciate ligament-injured high-level athlete: a narrative reviewOfficial journal
- Jun. 2024 Asia-Pacific Knee, Arthroscopy and Sports Medicine Society (APKASS), APKASS-AOSSM Traveling Fellowship 2024
- May 2021 The19th European Society for Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) Congress, KSSTA Jón Karlsson Young Researcher Award for Clinical Science
- 2020 Knee Surgery, Sports Traumatology, Arthroscopy (KSSTA), Best Reviewer Award 2019
- Jun. 2019 JOSKAS, 2019 JOSKAS Outstanding Young Investigator Award
- Jan. 2018 The International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS), International Sports Medicine Fellows Conference Scholarship
- 2018 The Orthopaedic Research Society (ORS), 2018 ORS/OREF Travel Grant in Orthopaedic Research Translation
- BACKGROUND: This study aimed to determine whether the association of knee extensor strength symmetry and psychological factors with single-leg hop distance (SLHD) differs according to recovery of knee extensor strength after anterior cruciate ligament (ACL) reconstruction with hamstring autograft. METHODS: Patients who underwent primary ACL reconstruction with knee function test results at 12 months after the surgery were included. Isokinetic knee extensor strength and SLHD were assessed, and the limb symmetry index (LSI) were calculated. Tampa scale for kinesiophobia-11 (TSK-11) score and ACL-Return to Sport after Injury (ACL-RSI) score were measured as psychological factors. The patients were divided into two groups according to the LSI of knee extensor strength: at least 80 % (the High group) or less than 80 % (the Low group). Multivariable liner regression analyses were conducted with the LSI of the SLHD as dependent variable, and the LSI of knee extensor strength and the psychological factors as independent variables for the High and Low groups, respectively. RESULTS: Of the 251 patients, 163 patients were included in the High group, and 88 patients were included in the Low group. In the High group, the psychological factors were significantly associated with the SLHD, whereas the LSI of knee extensor strength was not associated. Conversely, in the Low group, the LSI of knee extensor strength was significantly associated with SLHD, whereas the psychological factors were not associated. CONCLUSION: The association of knee extensor strength symmetry and psychological factors with SLHD differs according to knee extensor strength recovery after ACL reconstruction.Jan. 2026, Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association, English, Domestic magazineScientific journal
- PURPOSE: Knee extensor strength is a critical factor in patients with knee osteoarthritis. However, no studies have investigated whether knee extensor strength directly affects patient-reported outcomes after open-wedge high tibial osteotomy (OWHTO). The purpose of this study was to investigate the association between knee extensor strength and patient-reported outcomes after OWHTO. METHODS: Patients who underwent OWHTO between 2016 and 2023 with knee function test results 12 months after surgery were included in this study. Isokinetic knee extensor strength was measured on the involved and uninvolved limb and normalised to body weight (KES/BW). Patient-reported outcomes were assessed using the International Knee Documentation Committee (IKDC) subjective scores. Pearson correlation analysis and multivariable linear regression analysis were used to determine whether KES/BW on the involved limb was related to the IKDC subjective score. RESULTS: Fifty-eight knees from 52 patients who received OWHTO were evaluated. Pearson correlation analysis showed that KES/BW on the involved limb was significantly associated with the IKDC subjective score in OWHTO (r = 0.52, p < 0.001). Multivariable linear regression analysis indicated that KES/BW on the involved limb was independently associated with the IKDC subjective score at 12 months after OWHTO (β = 0.40, p = 0.02). CONCLUSIONS: KES/BW on the involved limb was independently associated with the IKDC subjective score at 12 months after OWHTO. This metric should be considered to achieve better patient-reported outcomes after OWHTO. LEVEL OF EVIDENCE: Level IV.Jan. 2026, Journal of experimental orthopaedics, 13(1) (1), e70625, English, International magazineScientific journal
- PURPOSE: Artificial intelligence (AI) has become incredibly popular over the past several years, with large language models (LLMs) offering the possibility of revolutionizing the way healthcare information is shared with patients. However, to prevent the spread of misinformation, analyzing the accuracy of answers from these LLMs is essential. This study will aim to assess the accuracy of five freely accessible chatbots by specifically evaluating their responses to questions about patellofemoral instability (PFI). The secondary objective will be to compare the different chatbots, to distinguish which LLM offers the most accurate set of responses. METHODS: Ten questions were selected from a previously published international Delphi Consensus study pertaining to patellar instability, and posed to ChatGPT4o, Perplexity AI, Bing CoPilot, Claude2, and Google Gemini. Responses were assessed for accuracy using the validated Mika score by eight Orthopedic surgeons who have completed fellowship training in sports-medicine. Median responses amongst the eight reviewers for each question were compared using the Kruskal-Wallis and Dunn's post-hoc tests. Percentages of each Mika score distribution were compared using Pearson's chi-square test. P-values less than or equal to 0.05 were considered significant. The Gwet's AC2 coefficient was calculated to assess for inter-rater agreement, corrected for chance and employing quadratic weights. RESULTS: ChatGPT4o and Claude2 had the highest percentage of reviews (38/80, 47.5%) considered to be an "excellent response not requiring classification", or a Mika score of 1. Google Gemini had the highest percentage of reviews (17/80, 21.3%) considered to be "unsatisfactory requiring substantial clarification", or a Mika score of 4 (p < 0.001). The median ± interquartile range (IQR) Mika scores was 2 (1) for ChatGPT4o and Perplexity AI, 2 (2) for Bing CoPilot and Claude2, and 3 (2) for Google Gemini. Median responses were not significantly different between ChatGPT4o, Perplexity AI, Bing CoPilot, and Claude2, however all four statistically outperformed Google Gemini (p < 0.05). Inter-rater agreement was classified as moderate (0.40 > AC2 ≥ 0.60) for ChatGPT, Perplexity AI, Bing CoPilot, and Claude2, while there was no agreement for Google Gemini (AC2 < 0). CONCLUSION: Current free access LLMs (ChatGPT4o, Perplexity AI, Bing CoPilot, and Claude2) predominantly provide satisfactory responses requiring minimal clarification to standardized questions relating to patellar instability. Google Gemini statistically underperformed in accuracy relative to the other four LLMs, with most answers requiring moderate clarification. Furthermore, inter-rater agreement was moderate for all LLMs apart from Google Gemini, which had no agreement. These findings advocate for the utility of existing LLMs in serving as an adjunct to physicians and surgeons in providing patients information pertaining to patellar instability. LEVEL OF EVIDENCE: V.Nov. 2025, BMC musculoskeletal disorders, 26(1) (1), 1022 - 1022, English, International magazineScientific journal
- (一社)日本義肢装具学会, Oct. 2025, 日本義肢装具学会誌, 41(特別) (特別), 148 - 148, Japaneseカーボン製足板付き足底装具の使用が強剛母趾とリスフラン関節症による足部疼痛および活動範囲に与える影響
- PURPOSE: To assess the incidence of ramp lesions in anterior cruciate ligament (ACL) injuries and to compare preoperative knee laxity between the patients with and without ramp lesions by using an electromagnetic measurement system (EMS). METHODS: Two hundred six patients who underwent primary ACL reconstruction with preoperative EMS measurements were retrospectively enrolled in the present study. The diagnoses of the ramp lesions were made by arthroscopic inspections. The patients with ramp lesions and no other meniscal lesions were allocated to 'ramp group', and the patients without any meniscal lesions were allocated to 'control group'. Before ACL reconstruction under general anaesthesia, the side-to-side difference (SSD) in anterior tibial translation (ATT) during Lachman test (mm) and tibial acceleration (m/s2) of posterior tibial reduction during the pivot-shift test was measured using the EMS. The SSD in tibial internal/external rotation angle (°) at 30, 60 and 90 were further measured using the EMS. The SSD in ATT using KT-2000 was also measured. Knee laxity measurements were compared between two groups using unpaired Student's t test. RESULTS: Ramp lesions were observed in 30 patients (14.7%). Subsequently, 17 patients were allocated to 'ramp group' and 77 patients to 'control group', and there were no statistical differences with regard to background demographics. ATT-SSD during Lachman test was significantly greater in 'ramp group' (9.1 [95% confidence interval, CI: 5.7-12.5] mm vs. 6.2 [95% CI: 5.1-7.3] mm, p = 0.037). However, SSD in ATT with KT-2000, tibial acceleration during pivot-shift test, and SSD in tibial rotational angles were not significantly different between the two groups. CONCLUSION: Presence of ramp lesion was associated with increased anterior knee laxity during Lachman test, suggesting ramp lesions may need to be addressed at the time of ACL reconstruction. LEVEL OF EVIDENCE: Level IV.Aug. 2025, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 33(8) (8), 2763 - 2770, English, International magazineScientific journal
- Recent studies demonstrated the role of antisense long noncoding RNAs (AS lncRNAs) in regulating gene expression at the transcriptional or translational level. In this study, we assessed the effects of sirtuin 1 (SIRT1) AS lncRNA overexpression and inhibition, along with overexpression of miR-34a, on interleukin (IL)-1β-induced gene expression alterations in human chondrocytes, aiming to understand its role in human chondrocytes. We analyzed gene expression alterations using real-time PCR and assessed SIRT1 protein level alterations through western blotting. IL-1β stimulation significantly upregulated A disintegrin and metalloproteinase with thrombospondin motif 5 (ADAMTS-5) and matrix metalloproteinase 13 (MMP-13). SIRT1 AS lncRNA overexpression significantly inhibited IL-1β-induced upregulation of these genes, whereas SIRT1 AS lncRNA inhibition further increased their expression. Moreover, overexpression of miR-34a significantly increased IL-1β-induced upregulation of ADAMTS-5 and MMP-13 which were rescued by over expression of SIRT1 AS lncRNA. SIRT1 protein levels were significantly increased by SIRT1 AS lncRNA overexpression and significantly reduced by its inhibition. Ribonuclease protection assay indicated the complete binding of SIRT1 AS lncRNA to SIRT1 mRNA. In the osteoarthritis (OA) cartilage, SIRT1 AS lncRNA expression was significantly reduced compared with that in normal cartilage. Our observations indicate that the binding of SIRT1 AS lncRNA to SIRT1 mRNA may suppress IL-1β-induced expression of cartilage-degrading enzymes. Therefore, SIRT1 AS lncRNA may be a novel therapeutic target for OA treatment.Jul. 2025, Scientific reports, 15(1) (1), 23338 - 23338, English, International magazineScientific journal
- BACKGROUND: The present study was aimed to compare the clinical outcomes following double-bundle (DB) ACL reconstruction (ACLR) with the outcomes following single-bundle (SB) ACLR in skeletally mature teenagers. METHODS: A total of 113 skeletally mature teenagers with unilateral ACL injury, who underwent primary ACLR using hamstring autograft with minimum 2 years follow-up, were included. This included 82 DB ACLR (median 16.0 [interquartile range (IQR), 2.0] year-old, male/female: 21/61) and 31 SB ACLR (17.0 [2.0] year-old, male/female: 6/25). At the final follow-up (3.6 [1.9] years), IKDC Subjective Knee Form (IKDC-SKF), Tegner activity scale, the side-to-side difference (SSD) in anterior tibial translation using KT arthrometer were obtained. The rate of residual pivot-shift test, graft rupture rate and contralateral ACL injury rate were also assessed. RESULTS: The rate of residual pivot-shift test was significantly lower in DB group than SB group (12.0 % vs 33.3 %, P = 0.02). Postoperative Tegner activity scale was significantly greater in DB group (7 [2]) than SB group (4 [4], P = 0.002). No significant differences were observed between two groups in IKDC-SKF (96.6 [10.0] in DB group, 97.7 [9.0] in SB group) and SSD in anterior tibial translation (1.5 [2.0] mm in DB group, 2.0 [2.0] mm in SB group). Graft rupture occurred in seven patients in DB group (8.5 %), and one patient in SB group (3.3 %). Contralateral ACL injury occurred in four patients in DB group (4.9 %), and two patients in SB group (6.5 %). No significant differences were observed between two groups in graft rupture and the contralateral ACL injury rates. CONCLUSION: Clinical outcomes following DB ACLR were similar to SB ACLR, but the pivot-shift phenomenon appeared to be better controlled in DB ACLR than SB ACLR. Thus, to better restore rotatory knee stability, DB ACLR may be recommended in the skeletally mature teenagers. LEVEL OF EVIDENCE: III.Jul. 2025, Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology, 41, 1 - 5, English, International magazineScientific journal
- PURPOSE/AIM: Temsirolimus is a water-soluble mammalian target of rapamycin (mTOR) complex inhibitor, potentially suitable for intra-articular administration. The present study aims to evaluate the therapeutic effects of intra-articular administration of temsirolimus on human chondrocytes and osteoarthritis (OA) progression in mice. MATERIALS AND METHODS: The beneficial effects of temsirolimus treatment were evaluated in human chondrocytes (Normal Human Articular Chondrocyte-Knee cells) with or without treatment with IL-1β in vitro by real-time polymerase chain reaction, TUNEL staining for apoptosis, and CYTO-ID(R) staining for autophagy. The therapeutic effect of intra-articular injection of temsirolimus was evaluated in OA models (destabilized medial meniscus in C57BL/6J and senescence accelerated mice prone 8 (SAMP8)) in vivo, by histological and immunohistochemical analyses. RESULTS: Temsirolimus treatment upregulated COL2A1 and aggrecan (a major proteoglycan in the articular cartilage) expression in human chondrocytes. In addition, temsirolimus treatment recovered IL-1β-induced down-reregulated COL2A1 and aggrecan expression, while it partially decreased upregulated MMP-1, MMP-13, ADAMTS-4, ADAMTS-5, IL-1β, and IL-6 expression and apoptosis in human chondrocytes. Further, temsirolimus treatment enhanced autophagic activity in human chondrocytes. The intra-articular injection of temsirolimus to 12-week and 1-year old wild-type surgically induced OA model mice and SAMP8 mice delayed OA progression as compared to that in the control mice. CONCLUSIONS: Temsirolimus treatment protected human chondrocytes from IL-1β-induced OA gene expression changes and apoptosis. Intra-articular injection of temsirolimus delayed OA progression in the mouse OA model and in SAMP8 mice. Thus, the intra-articular administration of temsirolimus is a promising therapeutic approach to inhibit articular cartilage degradation.Jun. 2025, Connective tissue research, 66(6) (6), 1 - 15, English, International magazineScientific journal
- The purpose of this study is to calculate diagnostic accuracy of chronic lateral ankle instability (CLAI) from a confusion matrix using deep learning (DL) on ultrasound images of anterior talofibular ligament (ATFL). The study included 30 ankles with no history of ankle sprains (control group), and 30 ankles diagnosed with CLAI (injury group). A total of 2000 images were prepared for each group by capturing ultrasound videos visualizing the fibers of ATFL under the anterior drawer stress. The images of 20 feet in each group were randomly selected and used for training data and the images of remaining 10 feet in each group were used as test data. Transfer learning was performed using 3 pretraining DL models, and the accuracy, precision, recall (sensitivity), specificity, F-measure, and the area under the receiver operating characteristic curve (AUC) were calculated based on the confusion matrix. The important features were visualized using occlusion sensitivity, a method for visualizing areas that are important for model prediction. DL was able to diagnose CLAI using ultrasound imaging with very high accuracy and AUC in three different learning models. In visualization of the region of interest, AI focused on the substance of the ATFL and its attachment on the fibula for the diagnosis of CLAI.Apr. 2025, Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology, 40, 1 - 6, English, International magazineScientific journal
- BACKGROUND: The femoral neck anteversion angle has been used as a surgical indicator for hip and patellofemoral joint disorders. However, the influence of limb position on femoral neck anteversion angle measurements during imaging remains unclear. Therefore, this study aimed to investigate the influence of limb position on femoral neck anteversion angle measurements. METHODS: Computed tomography images of 20 femurs from 10 patients were obtained. The angle between the line passing through the center of the femoral head and the center of the femoral neck and the tangential line of the femoral posterior condyles on axial slices was measured as the femoral neck anteversion angle. Raw femoral neck anteversion angle data was defined as the original femoral neck anteversion angle. The cutting direction of the axial plane was changed from -20° to 20° in 5° increments to simulate limb position changes for each of the following measurements: hip flexion/extension, abduction/adduction angles, and their combined directions. The femoral neck anteversion angle was measured under each condition, and the change in the angle was calculated. The correlation between hip angle and femoral neck anteversion angle change was analysed by Spearman's rank correlation coefficient. RESULTS: The mean original femoral neck anteversion angle was 17.6°. There was a strong negative correlation between hip flexion/extension change and femoral neck anteversion angle change (r = -0.96, p < 0.001). There was a weak correlation between hip adduction/abduction change and femoral neck anteversion angle change (r = 0.35, p < 0.001). The average maximum potential difference in femoral neck anteversion angle measurement combining flexion/extension and abduction/adduction was 21.0° ± 4.9°. CONCLUSIONS: The femoral neck anteversion angle changed in association with changes in limb position, particularly with hip flexion and extension. Careful attention to limb position and conditions of the slice is needed to consistently evaluate the femoral neck anteversion angle.Apr. 2025, Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology, 40, 29 - 34, English, International magazineScientific journal
- BACKGROUND: This study aimed to evaluate the differences between the mechanical axis (MA) in standing and supine positions in patients who underwent high tibial osteotomy (HTO) or distal tuberosity osteotomy (DTO) based on the surgical indication for the joint line convergence angle (JLCA). METHODS: Seventy-one knees of 69 patients with JLCA of < 6° in standing position and a difference of < 3° between the JLCA in the standing and supine positions who had undergone medial open-wedge HTO or DTO were included in this study. The %MA in the standing and supine positions (%MAst and %MAsp, respectively) and JLCA in the standing and supine positions (JLCAst and JLCAsp, respectively) were determined using preoperative and postoperative long-leg-view radiographs. The difference between %MA and JLCA in the standing and supine positions (Δ%MA and ΔJLCA, respectively) was calculated by subtracting the measurement value in the supine position from that in the standing position. RESULTS: The preoperative %MAst, %MAsp, JLCAst, and JLCAsp were 23.8 ± 9.5%, 28.7 ± 8.0%, 2.9 ± 1.4°, and 1.6 ± 1.4° respectively. The preoperative Δ%MA and ΔJLCA were - 4.9 ± 5.9% and 1.3 ± 1.0° respectively. The postoperative %MAst, %MAsp, JLCAst, and JLCAsp were 58.8 ± 6.9%, 59.0 ± 6.2%, 1.7 ± 1.0°, and 1.5 ± 1.1°, respectively. No significant differences were observed between the postoperative %MAst and %MAsp. The postoperative Δ%MA and ΔJLCA were - 0.2 ± 3.0% and 0.3 ± 0.6°, respectively. The postoperative Δ%MA was - 5 to 5% in 68 knees (95.8%). CONCLUSION: Minimal differences were observed between the Δ%MA after HTO and DTO among patients with preoperative JLCAst of < 6° and ΔJLCA and of < 3°, respectively. Appropriate surgical indications could minimize this difference.Mar. 2025, Journal of orthopaedic surgery and research, 20(1) (1), 321 - 321, English, International magazineScientific journal
- BACKGROUND: There are reports indicating that between 10 and 38.5 % of patients with chronic lateral ankle instability (CLAI) have an os subfibulare. In cases where CLAI accompanied by os subfibulare is resistant to conservative treatment, surgery may be necessary; however, there is no consensus on the most appropriate surgical method. We report outcomes of arthroscopic lateral ligament repair for chronic lateral ankle instability with os subfibulare at our hospital, followed for over 2 years post-operatively. METHODS: We reviewed 33 patients (39 ankles) whom underwent arthroscopic lateral ankle ligament repair (ALLR) for CLAI and followed for at least 2 years post-operatively between November 2015 and May 2020. Patients were classified into two groups: a group with os subfibulare (ossicle group) and a group without os subfibulare (non-ossicle group), based on the presence of an os subfibulare on pre-operative plain radiographs. ALLR surgeries were performed without resection of the os subfibulare in ossicle group. Clinical outcomes were assessed using the Japanese Society for Surgery of the Foot (JSSF) scale and the Self-administered Foot Evaluation Questionnaire (SAFE-Q). In addition, the bone-union rate was evaluated by using plain computer tomography in the ossicle group. RESULTS: There were significant improvements in the mean total JSSF scale scores from pre-operative to post-operative measurements in both the ossicle and non-ossicle groups. The mean scores for pain and related symptoms, foot function and activities of daily living, social functioning, shoe-related, and general health and well-being subscales of the SAFE-Q also showed significant improvements in both groups. There were no significant differences between the post-operative ossicle and non-ossicle groups regarding the JSSF scale scores or the SAFE-Q subscale scores. In the ossicle group, the bone-union rate was 14.3 % (2 of 14 ankles), but no symptom recurrence was observed. CONCLUSION: The 2 years outcomes of arthroscopic lateral ligament repair for chronic lateral ankle instability with os subfibulare revealed good results and no symptom recurrence.Jan. 2025, Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology, 39, 9 - 14, English, International magazineScientific journal
- PURPOSE: Magnetic Resonance Imaging (MRI) based three-dimensional analysis of knee cartilage has evolved to become fully automatic. However, when implementing these measurements across multiple clinical centers, scanner variability becomes a critical consideration. Our purposes were to quantify and compare same-model variability (between repeated scans on the same MRI system) and cross-model variability (across different MRI systems) in knee cartilage thickness measurements using MRI scanners from five manufacturers, as analyzed with a specific 3D volume analysis software. METHODS: Ten healthy volunteers (eight males and two females, aged 22-60 years) underwent two scans of their right knee on 3T MRI systems from five manufacturers (Canon, Fujifilm, GE, Philips, and Siemens). The imaging protocol included fat-suppressed spoiled gradient echo and proton density weighted sequences. Cartilage regions were automatically segmented into 7 subregions using a specific deep learning-based 3D volume analysis software. This resulted in 350 measurements for same-model variability and 2,800 measurements for cross-model variability. RESULTS: For same-model variability, 82% of measurements showed variability ≤0.10 mm, and 98% showed variability ≤0.20 mm. For cross-model variability, 51% showed variability ≤0.10 mm, and 84% showed variability ≤0.20 mm. The mean same-model variability (0.06 ± 0.05 mm) was significantly lower than cross-model variability (0.11 ± 0.09 mm) (p < 0.001). CONCLUSION: This study demonstrates that knee cartilage thickness measurements exhibit significantly higher variability across different MRI systems compared to repeated measurements on the same system, when analyzed using this specific software. This finding has important implications for multi-center studies and longitudinal assessments using different MRI systems and highlights the software-dependent nature of such variability assessments.2025, PloS one, 20(6) (6), e0324912, English, International magazineScientific journal
- PURPOSE: A novel AI-based 3D analysis system was developed to automatically extract bone and cartilage from MRI data and provide average cartilage thickness. This study aimed to analyze the interscan measurement error of knee cartilage thickness in osteoarthritis patients. METHODS: Fifty knee osteoarthritis patients underwent two scans using MRI systems from five different vendors. Each model included five Kellgren-Lawrence grade (KL) 1-2 and five KL3-4 patients. Cartilage thickness was automatically quantified for seven regions, and interscan measurement error was analyzed. RESULTS: In the KL1-2 group, measurements with errors ≤0.05 mm, ≤ 0.10 mm, and ≤0.20 mm were 42%, 75%, and 97%, respectively. For the KL3-4 group, these proportions were 31%, 59%, and 90%. The entire cohort (KL1-4) showed errors ≤0.05 mm, ≤ 0.10 mm, and ≤0.20 mm in 37%, 67%, and 93% of measurements. Differences between KL1-2 and KL3-4 groups were significant for all thresholds. CONCLUSION: Overall, 93% of interscan measurement errors were within 0.20 mm when using fully automatic MRI 3D analysis software to assess knee cartilage thickness in osteoarthritis patients. This study provides valuable insights into the reliability of automated cartilage thickness measurements across different disease severities and MRI systems.2025, PloS one, 20(8) (8), e0329610, English, International magazineScientific journal
- OBJECTIVES: There is a paucity of data about clinical outcomes after double-bundle anterior cruciate ligament reconstruction (DB-ACLR) using the concepts of patient-acceptable symptom state (PASS) and minimal clinically important difference (MCID). The aim of the present study was to evaluate the one-year clinical outcomes of patients who underwent DB-ACLR using PASS and MCID. METHODS: Achievement of PASS and MCID were retrospectively evaluated for 298 (mean age 26.9 years; 145 men/153 women) and 214 patients (mean age 23.9 years; 114 males/100 females), respectively, who underwent primary DB-ACLR using a hamstring autograft. For patients who achieved PASS or MCID, demographics, preoperative and postoperative data were statistically analyzed. RESULTS: Of 298 patients, 254 (85.2%) achieved International Knee Documentation Committee-Subjective Knee Form (IKDC-SKF) PASS and 191 out of 214 patients (88.8%) achieved MCID. The dichotomous logistic regression analyses to assess the achievement of PASS showed that younger age (odds ratio [OR], 0.96; 95% confidence interval [CI], 0.93-0.99; P = 0.013), male sex (OR, 2.2; 95% CI, 1.08-4.83; P = 0.030) and better one-year quadriceps strength symmetry (OR, 1.05; 95% CI, 1.03-1.07; P < 0.001) were independent predictors of PASS achievement. For MCID, preoperative IKDC-SKF score below the 50th percentile (OR, 14.39; 95% CI, 2.90-71.25; P = 0.001) and better one-year quadriceps strength symmetry (OR, 1.035; 95% CI, 1.007-1.064; P = 0.014) were independent predictors for MCID achievement. CONCLUSIONS: More than 85% of the patients achieved PASS and MCID for the IKDC-SKF score one year after undergoing DB-ACLR with hamstring tendon autograft. Better quadriceps strength symmetry at one year contributed to the achievement of both PASS and MCID. Rehabilitation dedicated to quadriceps strength recovery may be important for achieving good clinical outcomes after DB-ACLR. LEVEL OF EVIDENCE: IV, retrospective cohort.Dec. 2024, Journal of ISAKOS : joint disorders & orthopaedic sports medicine, 9(6) (6), 100344 - 100344, English, International magazineScientific journal
- BACKGROUND: Knee osteoarthritis (KOA) is a globally prevalent condition leading to joint pain and disabilities. Surgical interventions such as opening-wedge high tibial osteotomy (OWHTO) and opening-wedge distal tuberosity osteotomy (OWDTO) aim to alleviate symptoms and delay disease progression. Quadriceps strength, crucial for knee function, may decline postoperatively, affecting patient outcomes. However, little is known about quadriceps strength variation after OWHTO and OWDTO. This study investigated changes in quadriceps strength before and after OWHTO and OWDTO. METHODS: This retrospective study included patients who underwent OWHTO or OWDTO between 2016 and 2022. Quadriceps strength and demographic and surgical data were collected preoperatively and at 6 and 12 months postoperatively. Statistical analyses were performed to compare changes in quadriceps strength over time. RESULTS: Of 120 knees, 52 (OWHTO, 27; OWDTO, 25) were included in this study. Quadriceps strength increased over 12 months post-OWHTO, significantly improving at 12 months compared to the preoperative and 6-month values. In OWDTO, the strength improved but not significantly. CONCLUSIONS: Quadriceps strength improved following OWHTO and OWDTO, with OWHTO showing significant enhancements. Future studies should investigate the relationship between quadriceps strength and functional outcomes and guide rehabilitation strategies for improved postoperative recovery.Dec. 2024, The Knee, 51, 258 - 267, English, International magazineScientific journal
- PURPOSE: Graft failure following revision anterior cruciate ligament (ACL) reconstruction is higher than after primary ACL reconstruction. However, data regarding revision surgery is scarce. We aimed to evaluate the associated factors for failure after revision ACL reconstruction. METHODS: Fifty-four patients (mean age: 24.7 ± 10.0 years) who underwent revision ACL reconstruction at our hospital with ≥1 year follow-up were retrospectively examined. Patients were divided into Group F (graft failure) and Group N (no graft failure) groups. Univariate analysis was conducted to identify factors associated with graft failure. Receiver operating characteristic (ROC) curve analysis was performed to determine the optimal thresholds for differentiating between the two groups. RESULTS: Graft failure was observed in 7 of 54 patients (13.0%). In the univariate analysis, significant differences were observed for age at the initial surgery (Group F: 15.6 ± 1.5, Group N: 20.9 ± 8.1), age at the revision surgery (Group F: 18.0 ± 2.8, Group N: 25.7 ± 10.3), presence of hyperextended knee (Group F: 85.7%, Group N: 14.9%), concomitant meniscectomy (Group F: 42.9%, Group N: 14.9%), prerevision space for the ACL (sACL) (Group F: 7.2 ± 3.4 mm, Group N: 13.4 ± 4.7 mm) and preoperative anterior tibial translation (ATT) (Group F: 5.0 ± 1.4 mm, Group N: 2.7 ± 3.1 m). ROC analysis of preoperative sACL and preoperative ATT on one-leg standing plain radiograph showed that cutoff values of 6.9 and 4.2 mm were the optimal thresholds, respectively. CONCLUSION: Younger patients with a hyperextended knee, concomitant meniscectomy, small sACL and large ATT before revision ACL reconstruction are predisposed to graft failure. LEVEL OF EVIDENCE: Level IV.Jul. 2024, Journal of experimental orthopaedics, 11(3) (3), e70021, English, International magazineScientific journal
- Distal femoral osteotomy (DFO) is performed alone or with high tibial osteotomy (HTO) for patients with osteoarthritis and distal femur deformities. DFO is technically demanding, particularly when creating an anterior flange. Herein, we examined the morphological characteristics of the distal femur based on the cortical shape as a surgical reference for biplanar DFO. Computed tomography images of 50 valgus and 50 varus knees of patients who underwent biplanar DFO or total knee arthroplasty were analyzed. Axial slices at the initial level of the transverse osteotomy in the DFO and slices 10 mm proximal and 10 mm distal to that level were selected. The medial and lateral cortical angles and heights (MCLA, LCLA, MCH, and LCH) were measured on axial slices. Statistical comparisons were performed between the medial and lateral cortices and valgus and varus knees. MCLA and MCH were significantly smaller and lower, respectively, than LCLA and LCH (P < 0.01). The MCLA and MCH of varus knees were significantly smaller and lower, respectively, than those of valgus knees (P < 0.01). Surgeons should carefully observe morphological differences in the distal femur cortex, distinguishing between medial and lateral knees and varus and valgus knees during the creation of the anterior flange in the DFO.May 2024, Scientific reports, 14(1) (1), 12130 - 12130, English, International magazineScientific journal
- BACKGROUND: Measurements of knee cartilage thickness derived from MR images are attractive biomarkers for osteoarthritis research. Although some cross-sectional multivendor studies exist, none have employed fully automatic three-dimensional MRI analysis. Our objective was to evaluate the variations in knee cartilage thickness measurements obtained using automated methods and MRI instruments from five different vendors. METHODS: The subjects were 10 healthy volunteers aged 22-60 years. MRI models with 3 Tesla strength from five different companies were used. Cartilage thickness was quantified fully automatically for seven regions. We hypothesized that "the MRI model influences cartilage thickness measurements." Inter-measurement error, defined as the absolute difference between the targeted and median thicknesses determined by the five MRI models, was analyzed using histograms. The factors generating the largest inter-measurement error were also examined. RESULTS: No exceptional trends attributable to a specific instrument model were observed, and the p-value from the Kruskal-Wallis test exceeded 0.05 in all seven regions. Therefore, the study hypothesis was rejected. Of the 350 measurements, the inter-measurement error was ≤0.05 mm in 53 %, ≤0.10 mm in 75 %, and ≤0.20 mm in 95 %. Analysis of the medial tibial cartilage, which had the largest inter-measurement error, revealed mis-extraction of synovial fluid as cartilage. CONCLUSIONS: The choice of MRI model did not influence cartilage thickness measurements. Overall, 95 % of the inter-measurement errors were within 0.20 mm. The greatest error resulted from mis-extracting synovial fluid as cartilage.May 2024, European journal of radiology, 176, 111528 - 111528, English, International magazineScientific journal
- INTRODUCTION: This study aimed to clarify the relationship between psychological factors (goal orientation and desire for approval from others) and the severity of sports injuries experienced by young Japanese athletes. METHODS: A total of 560 young Japanese athletes (328 males and 232 females) aged 18-24 years completed an online survey in 2022-2023. A web questionnaire was used to investigate participants' task and ego orientations, desire for approval from others (e.g., coaches and friends/families), and history of injury. The samples were then split into 3 groups on the basis of the rest duration due to the injury: noninjury group (0 days), mild-to-moderate injury group (1-27 days), and severe injury group (>28 days). Spearman's test examined a correlation between task and ego orientation scores among all samples. The Mann-Whitney U test was used to compare the scores between the severe injury and noninjury groups. RESULT: A significant positive correlation was found between task and ego orientation scores from all samples (ρ=0.27, p<0.001). The severe injury group had significantly higher task orientation scores and desire for approval scores than the noninjury group (ρ=0.001, p<0.001). CONCLUSIONS: Japanese young athletes with high task orientation and approval desire may be at risk of severe sports injuries requiring >4 weeks to return to sports. The goal orientation profiles should be interpreted with caution. Future research should examine contextual effects such as the perceived motivational climate, in addition to the goal orientation profiles.Elsevier BV, May 2024, AJPM Focus, 3(4) (4), 100236 - 100236, English, International magazineScientific journal
- PURPOSE: The optimal hinge position to prevent hinge fractures in medial closing wedge distal femoral osteotomy (MCWDFO) based on the biomechanical background has not yet been well examined. This study aimed to examine the appropriate hinge position in MCWDFO using finite element (FE) analysis to prevent hinge fractures. METHODS: Computer-aided design (CAD) models were created using composite replicate femurs. FE models of the MCWDFO with a 5° wedge were created with three different hinge positions: (A) 5 mm proximal to the proximal margin of the lateral epicondylar region, (B) proximal margin level and (C) 5 mm distal to the proximal margin level. The maximum and minimum principal strains in the cortical bone were calculated for each model. To validate the FE analysis, biomechanical tests were performed using composite replicate femurs with the same hinge position models as those in the FE analysis. RESULTS: In the FE analysis, the maximum principal strains were in the order of Models A > B > C. The highest value of maximum principal strain was observed in the area proximal to the hinge. In the biomechanical test, hinge fractures occurred in the area proximal to the hinge in Models A and B, whereas the gap closed completely without hinge fractures in Model C. Fractures occurred in an area similar to where the highest maximal principal strain was observed in the FE analysis. CONCLUSION: Distal to the proximal margin of the lateral epicondylar region is an appropriate hinge position in MCWDFO to prevent hinge fractures. LEVEL OF EVIDENCE: Level V.Apr. 2024, Journal of experimental orthopaedics, 11(2) (2), e12015, English, International magazineScientific journal
- BACKGROUND: To assess the incidence of anterolateral ligament (ALL) and Kaplan fiber of the iliotibial band (KF) injuries in patients with acute anterior cruciate ligament (ACL) injury on magnetic resonance imaging (MRI), and to investigate the association between these injuries and the magnitude of preoperative pivot-shift test. METHOD: One-hundred and five patients with primary ACL injury were retrospectively reviewed. ALL injury and KF injury were assessed by preoperative MRI, and subjects were allocated into four groups: Group A, neither injury; Group B, only ALL injury; Group C, only KF injury; Group D, simultaneous ALL and KF injuries. Before ACL reconstruction, tibial acceleration during the pivot-shift test was measured by an electromagnetic measurement system, and manual grading was recorded according to the International Knee Documentation Committee (IKDC) guideline. RESULTS: In MRI, the ALL was identified in 104 patients (99.1%) and KF in 99 patients (94.3%). ALL and KF injuries were observed in 43 patients (43.9%) and 23 patients (23.5%), respectively. Patient distribution to each group was as follows; Group A: 43 patients (43.9%), Group B: 32 patients (32.7%), Group C: 12 patients (12.2%), Group D: 11 patients (11.2%). No significant differences were observed in tibial acceleration, and manual grading among the four groups. CONCLUSION: Simultaneous injury to both ALL and KF was uncommon, and preoperative pivot-shift phenomenon did not increase even in those patients. The finding suggests that the role of ALL and KF in controlling anterolateral rotatory knee laxity may be less evident in the clinical setting compared to a biomechanical test setting.Apr. 2024, Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology, 36, 40 - 44, English, International magazineScientific journal
- BACKGROUND: Psychological readiness to return to sports (RTS) has been associated with second anterior cruciate ligament (ACL) injury. However, this relationship is controversial because covariates such as anatomic and knee function characteristics have not been adequately considered. PURPOSE/HYPOTHESIS: To investigate whether psychological readiness in the early postoperative period can predict the occurrence of a second ACL injury within 24 months after primary ACL reconstruction (ACLR) using propensity score analysis. It was hypothesized that patients with high ACL-RSI after injury (ACL-RSI) scores at 3 months postoperatively would have a second ACL injury within the projected postoperative period. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Included were 169 patients who underwent primary ACLR using hamstring tendon autografts between November 2017 and July 2021 and also underwent knee functional assessments at 3 months postoperatively. The ACL-RSI scale was used to assess psychological readiness for RTS. A second ACL injury was defined if ipsilateral or contralateral ACL injury was confirmed by examination within 24 months postoperatively. Based on a previous study showing that 65 was the highest cutoff value for the ACL-RSI score for RTS, we classified patients into 2 groups: those with high ACL-RSI scores (≥65; group H) and those with low ACL-RSI scores (<65; group L). We generated 1-to-1 matched pairs using propensity score analysis and used log-rank testing to compare the rate of second ACL injury between the 2 groups. RESULTS: More patients returned to any sports activities within 12 months in group H than in group L (90% vs 73%; P = .03). A second ACL injury within 24 months postoperatively was identified in 7% of patients (13/169). The rate of second ACL injury was significantly higher in group H than in group L (17.6% vs 3.4%; P = .001). In 43 matched pairs extracted using propensity scoring, the rate of second ACL injury was also higher in group H than in group L (18.6% vs 4.7%; P = .04). CONCLUSION: Patients with a higher ACL-RSI score at 3 months exhibited a significantly higher incidence of second ACL injury within 24 months after primary ACLR.Apr. 2024, Orthopaedic journal of sports medicine, 12(4) (4), 23259671241239325 - 23259671241239325, English, International magazineScientific journal
- (公社)日本整形外科学会, Mar. 2024, 日本整形外科学会雑誌, 98(2) (2), S374 - S374, Japanese
- PURPOSE: To examine the biological changes in the joints of patients with knee osteoarthritis (OA) before and after around-knee osteotomy (AKO), focusing on synovial fluid (SF) and synovial pathological changes. METHODS: Patients who underwent AKO for medial compartment knee OA between 2019 and 2021 were examined. SF and synovium were obtained at the time of AKO and plate removal after bone union (mean, 16.8 months [range: 11-38 months] postoperatively). SF volume and interleukin (IL)-6 concentrations in SF were assayed using enzyme-linked immunosorbent assay. Synovitis was assessed histologically using a semiquantitative scoring system. Macrophage infiltration was assessed by immunohistochemistry using a semiquantitative score for F4/80 expression. The M1/M2 ratio was calculated using percentage of cells positive for CD80 and CD163. The expression of proinflammatory cytokines was assessed by the percentage of IL-1β- and IL-6-positive cells. The number of vascular endothelial growth factor-positive luminal structures was counted to assess angiogenesis. The change in each parameter was compared before and after AKO using the Wilcoxon matched-pairs signed-rank test. RESULTS: Twenty-four knees of 21 patients were included. SF volume and IL-6 concentration significantly decreased postoperatively (12.6 ± 2.1 mL vs 4.2 ± 0.6 mL; P < .0001 and 50.5 ± 8.6 pg/mL vs 20.7 ± 3.8 pg/mL; P = .0001, respectively). A significant reduction in synovitis score (P = .0001), macrophage infiltration (P < .0003), M1/M2 ratio (P < .0007), angiogenesis (P < .0001), and the percentage of IL-1β- and IL-6-positive cells in the intima (P < .008 and P < .002, respectively) was found after AKO. CONCLUSIONS: SF volume and IL-6 concentrations in the SF decreased and inflammatory synovium pathology improved after AKO. In addition to biomechanical changes, the biological environment of the joint can be improved after AKO. LEVEL OF EVIDENCE: Level IV, retrospective therapeutic case series.Mar. 2024, Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association, 40(3) (3), 830 - 843, English, International magazineScientific journal
- PURPOSE: To determine bony knee morphological factors associated with primary posterior cruciate ligament (PCL) rupture or PCL graft failure after PCL reconstruction. METHODS: Three databases, namely MEDLINE, PubMed and EMBASE, were searched on 30th May 2023. The authors adhered to the PRISMA and R-AMSTAR guidelines as well as the Cochrane Handbook for Systematic Reviews of Interventions. Data such as receiver operating characteristic curve parameters, as well as p-values for comparisons of values between patients with PCL pathology and control patients, were recorded. RESULTS: Nine studies comprising 1054 patients were included. Four studies reported that patients with PCL injury had flatter medial posterior tibial slopes (MTS) than controls, with mean values of 4.3 (range: 3.0-7.0) and 6.5 (range: 5.0-9.2) degrees, respectively. Two studies reported an MTS cutoff value ranging below 3.90-3.93° being a significant risk factor for primary PCL rupture or PCL graft failure. Two studies reported that shallow medial tibial depths were associated with primary PCL rupture, with mean values of 2.1 (range: 2.0-2.2) and 2.6 (range: 2.4-2.7) mm in PCL injury and control groups, respectively. Stenotic intercondylar notches and femoral condylar width were not consistently associated with PCL injuries. CONCLUSION: Decreased MTS is associated with primary PCL rupture and graft failure after PCL reconstruction with values below 3.93° being considered as a significant risk factor. Less common risk factors include shallow medial tibial depth, while femoral condylar width and parameters with regards to the intercondylar notch, such as notch width, notch width index and intercondylar notch volume, demonstrated conflicting associations with primary or secondary PCL injuries. LEVEL OF EVIDENCE: Level III.Jan. 2024, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 32(1) (1), 167 - 180, English, International magazineScientific journal
- BACKGROUND/OBJECTIVE: Arthroscopic lateral ligament repair (ALLR) for chronic lateral ankle instability (CLAI) has been improving with technical innovations. However, there is a lack of information regarding mid- and/or long-term clinical outcomes after the introduction of ALLR. This study aimed to report mid-term clinical outcomes of ALLR with a knotless anchor. METHODS: Thirty-two patients (11 men and 21 women; mean age, 28 ± 14 years) who underwent ALLR with a knotless anchor from December 2015 to October 2020 were included. The mean follow-up period was 31 ± 11 months. The Japanese Society for Surgery of the Foot (JSSF) ankle-hindfoot scale and the Self-Administered Foot Evaluation Questionnaire (SAFE-Q) were used for clinical evaluation preoperatively and at the 2-year follow-up. Surgical complications, particularly knot irritation, were also examined. RESULTS: The JSSF scale scores were significantly improved, from 71.3 ± 13.1 preoperatively to 96.6 ± 5.1 postoperatively (P < 0.05), and the SAFE-Q showed similar improvement in all subscales (P < 0.05). One case had a complication of persistent pain around the lateral portal (3.1%). CONCLUSION: ALLR using a knotless anchor provided satisfactory clinical outcomes over 2 years, and no major complications, such as knot irritation, were observed. CASE SERIES: Level of Evidence, 4.Jan. 2024, Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology, 35, 15 - 19, English, International magazineScientific journal
- PURPOSE: To evaluate the clinical outcomes of primary or revision ACL reconstruction (ACLR) after contralateral hamstring autografts versus ipsilateral hamstring autograft harvest. METHODS: Three databases (MEDLINE, PubMed and EMBASE) were searched from inception to April 27th, 2023 for studies investigating contralateral hamstring autografts in primary or revision ACLR. The authors adhered to the PRISMA and R-AMSTAR guidelines as well as the Cochrane Handbook for Systematic Reviews of Interventions. Data on demographics, strength measures, patient-reported outcome measures (PROMs), and rates of positive Lachman test, positive pivot-shift test and graft rupture were extracted. PROMs included Lysholm, International Knee Documentation Committee (IKDC) and Tegner scores. RESULTS: Nine studies comprising 371 patients were included in this review. In primary ACLR, there were no significant differences between contralateral and ipsilateral groups in isokinetic hamstring torque in the non-ACLR limb or isokinetic quadriceps torque in both limbs when tested at 60, 90, 120 or 180 degrees/second. Isokinetic hamstring torque in the non-ACLR limb was significantly weaker in the contralateral group at six months for primary ACLR; however, these deficits did not persist. There were no significant differences in postoperative median Tegner scores and Lysholm scores between contralateral and ipsilateral groups in primary ACLR. There were no significant differences in postoperative median Tegner, mean Lysholm and IKDC scores between groups in revision ACLR. There were no significant differences in positive Lachman, positive pivot-shift and rupture rates in primary ACLR between groups. Rates of positive Lachman and pivot-shift were slightly higher in the contralateral than ipsilateral group for revision ACLR. CONCLUSION: Contralateral hamstring autografts results in comparable muscle strength to ipsilateral hamstring autografts, with the exception of weaker hamstring strengths in the early postoperative period. Patient-reported outcome measures were similar between the two groups across both primary and revision ACLR, with rates of instability and failure being similar between groups for primary ACLR. Contralateral hamstring grafts do not provide additional benefit when compared to ipsilateral options for either primary or revision ACLR, and should be used only in select circumstances including insufficient ipsilateral hamstring grafts or situations where quadriceps or patella autografts are not optimal. LEVEL OF EVIDENCE: Level IV.Dec. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(12) (12), 5641 - 5651, English, International magazineScientific journal
- (一社)日本運動器理学療法学会, Oct. 2023, 日本運動器理学療法学会学術大会抄録集, 11回, 236 - 236, Japanese脛骨近位骨切り術後1年における膝伸展筋力と主観的評価の関連
- (一社)日本臨床スポーツ医学会, Oct. 2023, 日本臨床スポーツ医学会誌, 31(4) (4), S301 - S301, Japanese
- PURPOSE: To determine clinical outcomes and risks of various management strategies for mucoid degeneration of the anterior cruciate ligament (MD-ACL). METHODS: Three databases MEDLINE, PubMed and EMBASE were searched from inception to January 29th, 2023 for literature outlining clinical outcomes for various management strategies of MD-ACL. The authors adhered to the PRISMA and R-AMSTAR guidelines as well as the Cochrane Handbook for Systematic Reviews of Interventions. Data on satisfaction scores, visual analogue scale (VAS) scores, Lysholm scores, International Knee Documentation Committee (IKDC) scores, Knee Osteoarthritis and Outcome Scores (KOOS), range of motion and Lachman test were recorded. RESULTS: A total of 14 studies comprising 776 patients (782 knees) were included in this review. Partial debridement was reported in ten (71.4%) studies comprising 446 patients, showing significant improvements in VAS, Lysholm, IKDC scores and range of motion. Complete debridement was reported by two (14.2%) studies comprising 250 patients, and resulted in increases in Lysholm scores, KOOS, and range of motion. Reduction plasty was reported in two (14.2%) studies comprising 26 patients and showed improvements in VAS and Lysholm scores, and range of motion. Other methods of treatment included conservative management and ultrasound decompression. Complete debridement resulted in 10/23 (43%) patients with a positive Lachman test. This was followed by reduction plasty and partial debridement, with 5/26 (19.2%) and 45/340 (13.2%) patients respectively having positive Lachman or elevated knee arthrometer scores. Pivot shifting was only reported in studies on partial debridement and reduction plasty, with 14/93 (15.1%) and 1/21 (4.8%) patients have positive results, respectively. CONCLUSION: The most commonly reported management strategy for MD-ACL is partial debridement with complete debridement, reduction plasty and conservative management as alternative options. Current operative management strategies place individuals at risk for ACL insufficiency. Information from this review can aid surgeons and clinicians in understanding what treatment options are best for this patient population, by understanding the reported clinical benefits and risks of each strategy. LEVEL OF EVIDENCE: IV.Oct. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(10) (10), 4265 - 4275, English, International magazineScientific journal
- PURPOSE: To investigate the effect of technology-assisted Anterior Cruciate Ligament Reconstruction (ACLR) on post-operative clinical outcomes and tunnel placement compared to conventional arthroscopic ACLR. METHODS: CENTRAL, MEDLINE, and Embase were searched from January 2000 to November 17, 2022. Articles were included if there was intraoperative use of computer-assisted navigation, robotics, diagnostic imaging, computer simulations, or 3D printing (3DP). Two reviewers searched, screened, and evaluated the included studies for data quality. Data were abstracted using descriptive statistics and pooled using relative risk ratios (RR) or mean differences (MD), both with 95% confidence intervals (CI), where appropriate. RESULTS: Eleven studies were included with total 775 patients and majority male participants (70.7%). Ages ranged from 14 to 54 years (391 patients) and follow-up ranged from 12 to 60 months (775 patients). Subjective International Knee Documentation Committee (IKDC) scores increased in the technology-assisted surgery group (473 patients; P = 0.02; MD 1.97, 95% CI 0.27 to 3.66). There was no difference in objective IKDC scores (447 patients; RR 1.02, 95% CI 0.98 to 1.06), Lysholm scores (199 patients; MD 1.14, 95% CI - 1.03 to 3.30) or negative pivot-shift tests (278 patients; RR 1.07, 95% CI 0.97 to 1.18) between the two groups. When using technology-assisted surgery, 6 (351 patients) of 8 (451 patients) studies reported more accurate femoral tunnel placement and 6 (321 patients) of 10 (561 patients) studies reported more accurate tibial tunnel placement in at least one measure. One study (209 patients) demonstrated a significant increase in cost associated with use of computer-assisted navigation (mean 1158€) versus conventional surgery (mean 704€). Of the two studies using 3DP templates, production costs ranging from $10 to $42 USD were cited. There was no difference in adverse events between the two groups. CONCLUSION: Clinical outcomes do not differ between technology-assisted surgery and conventional surgery. Computer-assisted navigation is more expensive and time consuming while 3DP is inexpensive and does not lead to greater operating times. ACLR tunnels can be more accurately located in radiologically ideal places by using technology, but anatomic placement is still undetermined because of variability and inaccuracy of the evaluation systems utilized. LEVEL OF EVIDENCE: Level III.Oct. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(10) (10), 4299 - 4311, English, International magazineScientific journal
- PURPOSE: To compare graft dimensions, functional outcomes, and failure rates following anterior cruciate ligament reconstruction (ACLR) with either five-strand or four-strand hamstring autograft options. METHODS: Three databases (MEDLINE, PubMed, and EMBASE) were searched from inception to 22 April 2023 for level I and II studies comparing five- and four-strand hamstring autografts in ACLR. The authors adhered to the PRISMA and R-AMSTAR guidelines as well as the Cochrane Handbook for Systematic Reviews of Interventions. Data on demographics, surgical details and rehabilitation, graft diameter, patient-reported outcome measures (PROMs), and rates of positive Lachman test, positive pivot shift test, and graft rupture were extracted. PROMs included Knee Osteoarthritis and Outcome Score (KOOS) subscales, Lysholm, and International Knee Documentation Committee (IKDC). RESULTS: One randomized controlled trial (RCT) and four prospective cohort studies with 572 patients were included. Graft diameters were larger in the five-strand group with a mean difference of 0.93 mm (95% CI 0.61 to 1.25, p < 0.001, I2 = 66%). The five-strand group reported statistically higher KOOS ADL subscale and Lysholm scores with a mean difference of 4.85 (95% CI 0.14 to 9.56, p = 0.04, I2 = 19%) and 3.01 (95% CI 0.48 to 5.53, p = 0.02, I2 = 0%), respectively. There were no differences in KOOS symptoms, pain, quality of life, or sports subscales, or IKDC scores. There were no differences in rates of positive Lachman test, positive pivot shift test, or graft rupture with pooled odds ratios of 0.62 (95% CI 0.13 to 2.91, n.s., I2 = 80%), 0.94 (95% CI 0.51 to 1.75, n.s., I2 = 31%), and 2.13 (95% CI 0.38 to 12.06, n.s., I2 = 0%), respectively. CONCLUSIONS: Although five-stranded hamstring autografts had significantly larger graft diameters compared to four-stranded grafts with a mean difference of 0.93 mm, similar graft rupture rates and clinical laxity assessments were identified following ACLR. While some PROMs were statistically superior in the five-stranded hamstring groups, the threshold for the minimal clinical important difference was not reached indicating similar clinical outcomes overall. LEVEL OF EVIDENCE: Level II.Oct. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(10) (10), 4437 - 4447, English, International magazineScientific journal
- PURPOSE: This study aimed to investigate the relationship between periprosthetic osteolysis around the talar component and the amount of talar component subsidence after total ankle arthroplasty (TAA). METHODS: This study included forty patients who underwent TAA with a mean follow-up of 67.5 ± 17.0 months. The patients were divided into two groups based on the amount of osteolysis around the talar component, as measured by computed tomography at the latest clinic visit: none to 2 mm (N group, n = 20) and greater than or equal to 2 mm (O group, n = 20). The average amount of talar component subsidence, clinical outcomes, and complications were compared between the two groups. In the O group, the correlation between osteolysis and talar component subsidence was evaluated. RESULTS: The average talar component subsidence was significantly different between the N (0.22 ± 0.94 mm) and O groups (2.12 ± 2.28 mm). Five out of 20 ankles in the O group required revision surgery owing to talar component subsidence. The Japanese Society for Surgery of the Foot scores in the N and O groups were significantly different: 93.5 ± 7.7 and 85.3 ± 15.4, respectively. In the O group, we found that osteolysis tended to develop on the lateral side, and the amount of osteolysis was positively correlated with the talar component subsidence (r = 0.59, P = .007). CONCLUSION: In the O group, a positive correlation between osteolysis and talar component subsidence was found, and five patients required revision surgery.Oct. 2023, European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 33(7) (7), 2987 - 2993, English, International magazineScientific journal
- Oct. 2023, The American journal of sports medicine, 51(12) (12), NP48-NP49, English, International magazineScientific journal
- (一社)日本臨床スポーツ医学会, Oct. 2023, 日本臨床スポーツ医学会誌, 31(4) (4), S298 - S298, Japanese
- (一社)日本臨床スポーツ医学会, Oct. 2023, 日本臨床スポーツ医学会誌, 31(4) (4), S301 - S301, Japanese
- (一社)中部日本整形外科災害外科学会, Sep. 2023, 中部日本整形外科災害外科学会雑誌, 66(5) (5), 869 - 869, Japanese前十字靱帯再建術後感染に対して持続局所抗菌薬灌流療法を行い,移植腱を温存し得たプロサッカー選手の1例
- PURPOSE: To determine the reliability and diagnostic accuracy of tibial tubercle-trochlear groove (TT-TG) distance versus tibial tubercle-posterior cruciate ligament (TT-PCL) distance, and to determine cutoff values of these measurements for pathological diagnosis in the context of patellar instability. METHODS: Three databases MEDLINE, PubMed and EMBASE were searched from inception to October 5, 2022 for literature outlining comparisons between TT-TG and TT-PCL in patellar instability patients. The authors adhered to the PRISMA and R-AMSTAR guidelines as well as the Cochrane Handbook for Systematic Reviews of Interventions. Data on inter-rater and intra-rater reliability, receiver-operating characteristic (ROC) curve parameters such as area under the curve (AUC), sensitivity and specificity, as well as odds ratios, cutoff values for pathological diagnosis and correlations between TT-TG and TT-PCL were recorded. The MINORS score was used for all studies in order to perform a quality assessment of included studies. RESULTS: A total of 23 studies comprising 2839 patients (2922 knees) were included in this review. Inter-rater reliability ranged from 0.71 to 0.98 and 0.55 to 0.99 for TT-TG and TT-PCL, respectively. Intra-rater reliability ranged from 0.74 to 0.99 and 0.88 to 0.98 for TT-TG and TT-PCL, respectively. AUC measuring diagnostic accuracy of patellar instability for TT-TG ranged from 0.80 to 0.84 and 0.58 to 0.76 for TT-PCL. Five studies found TT-TG to have more discriminatory power than TT-PCL at distinguishing patients with patellar instability from patients who do not. Sensitivity and specificity ranged from 21 to 85% and 62 to 100%, respectively, for TT-TG. Sensitivity and specificity ranged from 30 to 76% and 46 to 86%, respectively, for TT-PCL. Odds ratio values ranged from 1.06 to 14.02 for TT-TG and 0.98 to 6.47 for TT-PCL. Proposed cutoff TT-TG and TT-PCL values for predicting patellar instability ranged from 15.0 to 21.4 mm and 19.8 to 28.0 mm, respectively. Eight studies reported significant positive correlations between TT-TG and TT-PCL. CONCLUSION: TT-TG resulted in overall similar reliability, sensitivity and specificity as TT-PCL; however, TT-TG has better diagnostic accuracy than TT-PCL in the context of patellar instability as per AUC and odds ratio values. LEVEL OF EVIDENCE: Level IV.Aug. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(8) (8), 3243 - 3258, English, International magazineScientific journal
- PURPOSE: To compare post-operative clinical outcomes of discoid meniscus tear procedures such as saucerization with or without repair with those of non-discoid meniscus tears such as meniscectomy or repair in skeletally mature patients with no concomitant injuries. METHODS: Three databases MEDLINE, PubMed and EMBASE were searched from inception to July 3rd, 2022 for literature describing patient-reported outcome measures after meniscus surgery in discoid or non-discoid meniscus tears. The authors adhered to the PRISMA and R-AMSTAR guidelines as well as the Cochrane Handbook for Systematic Reviews of Interventions. Clinical outcome data on Lysholm, Tegner, International Knee Documentation Committee (IKDC), revision rates, and complications were recorded, with MINORS and Detsky scores used for quality assessment. RESULTS: A total of 38 studies comprising 2213 patients were included with a mean age of 38.6 years (range: 9.0-64.4). The mean follow-up time was 54.1 months (range: 1-234) and the average percentage of female participants was 46.8% (range: 9.5-95.5). The mean change between pre-operative and post-operative Lysholm scores ranged from 21.0-39.0, 7.4-24.1, and 24.2-48.4 in the discoid, non-discoid meniscectomy, and non-discoid repair groups, respectively. The mean change in Tegner scores ranged from 0.0 to 2.3, 1.3, and 0.4-1.3 in the discoid, non-discoid meniscectomy, and non-discoid repair groups, respectively. Pre-operative IKDC scores were not reported, however mean post-operative IKDC scores ranged from 77.4 to 96.0, 46.9 to 85.7, and 63.1 to 94.0 in discoid, non-discoid meniscectomy, and non-discoid repair groups, respectively. Revision rates for discoid procedures, non-discoid meniscectomies, and non-discoid meniscus repairs ranged from 3.2 to 44.0%, 8.3 to 56.0%, and 5.9 to 28.0%, respectively. The most common reasons for revision were acute trauma and persistent pain. CONCLUSION: Discoid saucerization procedures with or without repair leads to similar Lysholm scores as non-discoid repair procedures, and similar IKDC scores and revision rates compared to non-discoid meniscectomy or repair procedures. Patients undergoing discoid procedures appeared to have slightly higher Tegner activity scores compared to patients undergoing non-discoid procedures; however this is to be considered in the context of a younger population of patients undergoing discoid procedures than non-discoid procedures. This information can help guide surgeons in the decision-making process when treating patients with discoid menisci, and should guide further investigations on this topic. LEVEL OF EVIDENCE: IV.Aug. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(8) (8), 3369 - 3380, English, International magazineScientific journal
- PURPOSE: This study compared the predictive ability of each independent predictor with that of a combination of predictors for quadriceps strength recovery one year after anterior cruciate ligament (ACL) reconstruction. METHODS: Patients who underwent primary ACL reconstruction using hamstring autografts were enrolled. Quadriceps strength, hamstring strength, and anterior tibial translation were measured, and the limb symmetry index (LSI) of the quadriceps and the hamstrings was calculated preoperatively and one year after surgery. Patients were classified into two groups according to the LSI of the quadriceps strength at one year postoperatively (≥ 80% or < 80%). Multivariate logistic regression analysis identified the independent predictors of quadriceps strength recovery, and the cut-off value was calculated using the receiver operating characteristic curve. A model assessing predictive ability of the combination of independent predictors was created, and the area under the curve (AUC) for each independent predictor was calculated by using the receiver-operating characteristic curves and the DeLong method. RESULTS: Of the 646 patients, 414 (64.1%) had an LSI of at least 80% for quadriceps strength one year after surgery, and 232 patients (35.9%) had an LSI of < 80%. Age, sex, body mass index (BMI), preinjury sport level, and LSI of preoperative quadriceps strength were independently associated with quadriceps strength recovery one year after ACL reconstruction. The cut-off values were age: 22.5 years; sex: female; BMI: 24.3 kg/m2; preinjury sport level: no sport; and LSI of preoperative quadriceps strength: 63.3%. The AUC of the model assessing the predictive ability of the combination of age, sex, BMI, preinjury sport level, and LSI of preoperative quadriceps strength was significantly higher (0.73) than that of similar factors of preoperative quadriceps strength (AUC: 0.63, 0.53, 0.56, 0.61, and 0.68, p < 0.01, respectively). CONCLUSION: The combination of age, sex, BMI, preinjury sport level, and LSI of preoperative quadriceps strength had a superior predictive ability for quadriceps strength recovery at one year after ACL reconstruction than these predictors alone. Multiple factors, including patient characteristics and preoperative quadriceps strength, should be considered when planning rehabilitation programs to improve quadriceps strength recovery after ACL reconstruction. LEVEL OF EVIDENCE: III.Jun. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(10) (10), 4390 - 4398, English, International magazineScientific journal
- PURPOSE: This review aims to elucidate the most commonly reported method to quantify fear of reinjury or kinesiophobia and to identify key variables that influence the degree of kinesiophobia following primary anterior cruciate ligament reconstruction (ACLR). METHODS: A systematic search across three databases (Pubmed, Ovid (MEDLINE), and EMBASE) was conducted from database inception to August 7th, 2022. The authors adhered to the PRISMA guidelines and the Cochrane Handbook for Systematic Reviews of Interventions. Quality assessment of the included studies was conducted according to the Methodological Index for Non-Randomized Studies (MINORS) criteria. RESULTS: Twenty-six studies satisfied the inclusion criteria and resulted in 2,213 total patients with a mean age of 27.6 years and a mean follow-up time of 36.7 months post-surgery. The mean MINORS score of the included studies was 11 out of 16 for non-comparative studies and 18 out of 24 for comparative studies. Eighty-eight percent of included studies used variations of the Tampa Scale of Kinesiophobia (TSK) to quantify kinesiophobia and 27.0% used Anterior Cruciate Ligament Return to Sport After Injury (ACL-RSI). The results of this study shows a common association between higher kinesiophobia and poor patient-reported functional status measured using International Knee Documentation Committee (IKDC) Scores, Activity of Daily Living (ADL), Quality of Life (QOL), and Sports/Recreation (S/R) subscales of Knee Osteoarthritis and Outcome Score (KOOS) and Lysholm scores. Postoperative symptoms and pain catastrophizing measured using the KOOS pain and symptom subscales and Pain Catastrophizing Score (PCS) also influenced the degree of kinesiophobia following ACLR. Patients with an increased injury to surgery time and being closer to the date of surgery postoperatively demonstrated higher levels of kinesiophobia. Less common variables included being a female patient, low preoperative and postoperative activity status and low self-efficacy. CONCLUSION: The most common methods used to report kinesiophobia following primary ACLR were variations of the TSK scale followed by ACL-RSI. The most commonly reported factors influencing higher kinesiophobia in this patient population include lower patient-reported functional status, more severe postoperative symptoms such as pain, increased injury to surgery time, and being closer to the date of surgery postoperatively. Kinesiophobia following primary ACLR is a critical element affecting post-surgical outcomes, and screening should be implemented postoperatively to potentially treat in rehabilitation and recovery. LEVEL OF EVIDENCE: IV.Jun. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(6) (6), 2299 - 2314, English, International magazineScientific journal
- May 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(5) (5), 2048 - 2050, English, International magazine
- BACKGROUND: In knee arthroscopic surgery, fibrin clot (FC) and leukocyte-rich platelet-rich fibrin (L-PRF) may be used in augmentation for meniscal repair. Studies have investigated growth factors released from FC and L-PRF; however, it is difficult to compare FC and L-PRF between different studies. Direct comparison of growth factors that may support meniscal healing released from FC and L-PRF may be beneficial in deciding whether to use FC or L-PRF. If no significant difference is seen, the surgeon may decide to use FC which is easier to prepare compared to L-PRF. The purpose of this pilot study is to investigate the release amount and pattern of basic fibroblast growth factor (bFGF), platelet-derived growth factor AB (PDGF-AB), transforming growth factor β1 (TGF-β1), vascular endothelial growth factor (VEGF), and stromal cell-derived factor 1 (SDF-1) from FC and L-PRF. METHOD: Twenty milliliters (ml) of whole blood was collected from each of the four volunteers. Ten milliliters of whole blood was allocated for preparation of FC and 10 ml for L-PRF. FC and L-PRF were separately placed in 5 ml of culture media. Five milliliters of the culture media was sampled and refilled at 15 min, 1 day, 3 days, 1 week and 2 weeks. The collected culture was used to quantify bFGF, PDGF-AB, TGF-β1, VEGF, and SDF-1 release by Enzyme-linked immune-sorbent assay (ELISA). Mann-Whitney U test was performed to assess significance of differences in amount of each growth factor released between FC and L-PRF. Significance was accepted at P value less than 0.05. RESULTS: At two weeks, the cumulative release of TGF-β1 was the highest among all the growth factors in both FC and L-PRF (FC:19,738.21 pg/ml, L-PRF: 16,229.79 pg/ml). PDGF-AB (FC: 2328 pg/ml, L-PRF 1513.57 pg/ml) had the second largest amount, followed by VEGF (FC: 702.06 pg/ml, L-PRF 595.99 pg/ml) and bFGF (FC: 23.48 pg/ml, L-PRF 18.2 pg/ml), which order was also common in both FC and L-PRF. No significant difference in final release amount and pattern was seen between FC and L-PRF. CONCLUSION: The current pilot study showed that cumulative release amount and release pattern of PDGF-AB, VEGF, TGF-β1, and bFGF did not significantly differ between FC and L-PRF during the two weeks of observation.Mar. 2023, Journal of orthopaedic surgery and research, 18(1) (1), 238 - 238, English, International magazineScientific journal
- PURPOSE: The purpose of this study is to develop a comprehensive complications profile for quadriceps tendon-autograft anterior cruciate ligament reconstruction (QT ACL-R). METHODS: A traditional and grey literature search was conducted in accordance with PRISMA and R-AMSTAR guidelines. PubMed, EMBASE, MEDLINE, CINAHL, Cochrane, Web of Science, and many grey literature sources were searched from inception to May 29, 2022. All studies were searched and screened in duplicate with included studies being of all levels of evidence, reporting complications, and with patients of all ages undergoing primary ACL reconstruction with quadriceps tendon autograft in the last 15 years. Studies were excluded if they had cadaveric or animal subjects or were reviews. Risk of bias assessment was conducted using MINORS criteria for non-randomised studies and Cochrane's RoB 2.0 for randomised studies. Data were summarised with weighted event rates generated under a random-effects model. RESULTS: A total of 55 studies (5315 reconstructions) were included: 32 used quadriceps tendon with bone block (B-QT), 19 used all-soft tissue quadriceps tendon (S-QT), and four did not report the QT graft subtype used. Included patients had an age range of 6.2-58 years and an average reported follow-up time of 28.1 months (range, 6-90 months) for non-randomised studies and 34.3 months (range, 0.233-120 months) for randomised studies. Pooled incidence rates for clinically relevant major complications included contralateral ACL injury at 6.0%, postoperative meniscal issues at 5.4%, cyclops lesions at 4.8%, graft failure at 4.1%, patellar fracture at 2.2%, hardware removal at 1.7%, infection at 1.5%, and donor-site quadriceps tendon rupture at 0.7%. Pooled incidence rates for clinically relevant minor complications included anterior knee pain at 9.7%, kneeling pain at 9.5%, sensation deficits at 4.4%, loss of extension at 4.2%, donor-site tendinopathy at 3.9%, cosmetic issues at 1.8%, and hematoma at 1.5%. CONCLUSIONS: QT ACL-R resembles other graft types in its rates and types of postoperative complications. In this exploratory systematic review, no complications of QT ACL-R were found to be disproportionately represented in the literature. This graft type should remain an option with comparable complication rates to other graft choices. LEVEL OF EVIDENCE: Level IV. REGISTRATION: This study was preregistered under PROSPERO with preregistration code CRD42022302078.Feb. 2023, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 31(2) (2), 572 - 585, English, International magazineScientific journal
- BACKGROUND: In double-bundle anterior cruciate ligament (ACL) reconstruction, tunnel coalition may occur intraoperatively or during the postoperative course. Tibial tunnel coalition is more common compared with femoral tunnel coalition. Once tunnel coalition occurs on the tibial side, rotatory knee laxity may not be controlled as expected. We have developed a new device to avoid tibial tunnel coalition with consistency. The purpose of this video is to present the surgical technique for double-bundle ACL reconstruction using a new drill guide. INDICATIONS: The novel guide may be used in all cases with confirmed ACL tear in a physically active patient, identical to indications for current ACL reconstruction using the double-bundle technique. TECHNIQUE DESCRIPTION: The hamstring tendon is harvested for the ACL grafts. Two guide pins for the anteromedial bundle and posterolateral bundle for the tibial tunnel are inserted through the Anatomic Double-Bundle 2-in-1 Guide System. Cannulated drills and dilators are used to create the tunnel to the final diameter. Next, femoral tunnels are created by the outside-in technique using the Anatomic Double-Bundle 2-in-1 Guide System. Grafts are inserted from the tibia and passed through the femur. The grafts are fixed with a post screw and/or interference screw. RESULTS: Two weeks after surgery, no tibial or femoral coalition (0/20 cases) were confirmed and tibial bony bridge at the intraarticular surface was measured 2.7 ± 0.9 mm using computed tomography (CT). One year after surgery, tibial coalition was confirmed in 13.3% (2/15 cases), and femoral coalition in 6.7% (1/15 cases) on CT image mainly due to tunnel widening. The 2 cases with tibial coalition had tibial bony bridge of less than 2 mm on immediate postoperative CT. DISCUSSION/CONCLUSION: Using the novel guide, 2 tibial tunnels were created easily and accurately compared with the conventional independent drilling technique. The 2 tunnels can also be created simultaneously with single placement of the guide. Two separate tunnels help maintain expected rotatory knee stability after double-bundle ACL reconstruction. PATIENT CONSENT DISCLOSURE STATEMENT: The author(s) attests that consent has been obtained from any patient(s) appearing in this publication. If the individual may be identifiable, the author(s) has included a statement of release or other written form of approval from the patient(s) with this submission for publication.2023, Video journal of sports medicine, 3(5) (5), 26350254231204636 - 26350254231204636, English, International magazineScientific journal
- PURPOSE: To investigate the association between posterior tibial slope (PTS) and preoperative pivot-shift phenomenon in anterior cruciate ligament (ACL)-injured knees. METHODS: Fifty unilateral ACL-injured patients (mean age: 28.0 ± 11.4 years, 29 males) who underwent ACL reconstruction were retrospectively included. Patients with a history of injury to the ipsilateral knee joint, concomitant ligament injuries with ACL injury, and/or more than one year from injury to surgery, were excluded. Pivot-shift tests were performed preoperatively under general anaesthesia using an electromagnetic measurement system, and tibial acceleration (m/s2) during the posterior reduction of the tibia was measured. Medial and lateral PTS (°) were measured respectively using high-resolution CT images taken two weeks after surgery. Lateral-medial slope asymmetry was calculated by subtracting medial PTS from lateral PTS (lateral-medial PTS) and we evaluated the correlation between each PTS parameter (medial PTS, lateral PTS, and lateral-medial slope asymmetry) and tibial acceleration during the pivot-shift test. The level of significance was set at p < 0.05. RESULTS: Medial PTS was 4.9 ± 2.0°, and lateral PTS was 5.2 ± 1.9°. The lateral-medial slope asymmetry was 0.3 ± 1.6° (range: -2.9 to 3.8). Tibial acceleration during the pivot-shift test in the ACL-injured knee was 1.6 ± 0.1 m/s2. Preoperative tibial acceleration was positively correlated with lateral PTS (r = 0.436, p < 0.01), and lateral-medial slope asymmetry (r = 0.443, p < 0.01), while no significant correlation was found between preoperative tibial acceleration and medial PTS (r = 0.06, p = 0.70). CONCLUSION: Preoperative greater tibial acceleration during the pivot-shift test was associated with steeper lateral PTS and greater lateral-medial slope asymmetry in ACL-injured knees. These findings improve our understanding of anterolateral rotatory knee laxity by linking tibial bony morphology to quantitative measurement of pivot-shift phenomenon. Surgeons should be aware that not only lateral PTS but also lateral-medial slope asymmetry are the factors associated with preoperative pivot-shift. LEVEL OF EVIDENCE: Level IV.Dec. 2022, Journal of experimental orthopaedics, 9(1) (1), 117 - 117, English, International magazineScientific journal
- INTRODUCTION: Intra-operative and postoperative coalition of tunnels may occur in double-bundle (DB) anterior cruciate ligament reconstruction (ACLR). However, the incidence and effect on clinical outcomes of tunnel coalition following primary DB ACLR using a hamstring autograft has yet be analyzed, and thus remains unknown. The objective of this systematic review was to identify the incidence of tunnel coalition upon DB ACLR using hamstring autografts and to elucidate any clinical outcomes and/or complications that tunnel coalition may have postoperatively. HYPOTHESIS: The incidence of tunnel coalition would increase in respect to time from the index surgery, and that tunnel coalition would be related to poorer clinical outcomes compared to non-coalition cases. METHODS: Three databases (PubMed, EMBASE, Cochrane Library) were searched in accordance with PRISMA and R-AMSTAR guidelines on June 15, 2020. Relevant studies were screened in duplicate and data regarding patient demographics, incidence of femoral and tibial tunnel coalition, and outcomes were extracted. Coalition rate was also compared between follow up at 1 month or less defined as "shorter-term", and 6 months or greater as "longer-term". Coalition is defined as the missing of a bony bridge between the two tunnels. RESULTS: Thirty-six studies examining 1,574 patients, mean age 29.1 years, were included in this study. 29 studies (1,110 knees) reported the incidence of femoral coalition with a pooled rate of coalition of 8% (95% CI=4-12%). 28 studies (1,129 knees) reported an incidence of tibial coalition with a pooled rate of coalition of 21% (95% CI=13-30%). The incidence of tibial coalition was significantly higher than the incidence of femoral coalition across 21 comparative studies (OR=3.37, 95% CI=1.41-8.09, p=0.0065). Only two studies (111 knees) compared tunnel coalition and non-coalition groups for clinical outcome and no significant differences were observed with regards to Lysholm score, Tegner activity scale, and knee laxity measured with a KT-1000 arthrometer. DISCUSSION: The rate of tibial tunnel coalition in DB ACLR is higher than femoral tunnel coalition, particularly at longer-term follow-up. Despite the higher radiographic evidence of coalition, the clinical effects of such remain to be ascertained, and further comparative studies are required to facilitate this understanding. LEVEL OF EVIDENCE: IV, systematic review.Dec. 2022, Orthopaedics & traumatology, surgery & research : OTSR, 108(8) (8), 103407 - 103407, English, International magazineScientific journal
- (一社)兵庫県理学療法士会, Dec. 2022, 理学療法兵庫, (28) (28), 43 - 44, Japanese
- Medial meniscus posterior root tears (MMPRT) are often associated with osteoarthritis (OA) progression and subchondral bone insufficiency fractures. This study aimed to develop the first MMPRT mouse model. The MMPRT model was created by sectioning the medial meniscus posterior root of 12-week-old CL57BL/6J male mice under stereomicroscopic observation. The sham operation and the destabilization of the medial meniscus (DMM) model groups were also created. OA progression and subchondral bone changes were evaluated histologically using the Osteoarthritis Research Society International (OARSI) subchondral bone scoring system at 2, 4, 8, and 12 weeks after surgery. Microcomputed tomography (µCT) was performed to evaluate the presence of insufficient fractures. OA progression and medial meniscus extrusion were observed in the MMPRT and DMM models 12 weeks after surgery. OA progressed in both models during the time course, without a significant difference in the OARSI score between the two groups. The subchondral bone score was significantly higher at 12 weeks than at 2 and 4 weeks in the MMPRT group, while no significant difference was found between the two groups. In the µCT analysis, destruction of the medial tibial plateau was observed in 4/40 knees, while none were observed in the DMM group. Of the four knees, destruction of the medial femoral condyle was also observed in three knees. Characteristic pathological changes were observed in the mouse MMPRT model. The mouse MMPRT model may be useful for investigating pathological changes after MMPRT.Springer Science and Business Media LLC, Oct. 2022, Calcified Tissue International, 112(1) (1), 55 - 65, English, International magazineScientific journal
- BACKGROUND: Biomechanical cadaveric studies have shown that Kaplan fibers (KFs) of the iliotibial band play a role in controlling anterolateral rotatory knee laxity in anterior cruciate ligament (ACL) injury. However, in the clinical setting, the contribution of injury to KFs on anterolateral rotatory laxity remains unclear. PURPOSE: To use magnetic resonance imaging (MRI) scans to detect concomitant KF injury in ACL-injured knees and to then examine the effect of KF injury on anterolateral rotatory laxity as measured by the pivot-shift test in a clinical setting. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: The study enrolled 91 patients with primary ACL tears (mean age 25 ± 11 years; 46 male and 45 female) whose MRI was conducted within 90 days after injury. KF injury was assessed by MRI according to previously reported criteria, and the patients were allocated to a KF injury group and a no-KF injury group. At the time of ACL reconstruction, the pivot-shift test was performed with the patient under anesthesia and quantitatively evaluated by tibial acceleration using an electromagnetic measurement system. Manual grading of the pivot-shift test was assessed according to guidelines of the International Knee Documentation Committee. The data were statistically compared between the 2 groups using Mann-Whitney U test and Fisher exact test (P < .05). RESULTS: KFs were identified in 85 patients (93.4%), and KF injury was detected in 20 of the 85 patients (23.5%). No significant differences were observed between the KF injury group (n = 20) and the no-KF injury group (n = 65) in demographic characteristics, the period from injury to MRI (8.0 ± 14.0 days vs 8.9 ± 12.1 days, respectively), the rate of meniscal injury (50.0% vs 53.8%), or the rate of anterolateral ligament injury (45.0% vs 44.6%). Regarding the pivot-shift test, no significant differences were observed in tibial acceleration (1.2 m/s2 [interquartile range, 0.5-2.1 m/s2] vs 1.0 m/s2 [interquartile range, 0.6-1.7 m/s2], respectively) or manual grading between the 2 groups. CONCLUSION: Concomitant KF injury did not significantly affect the pivot-shift phenomenon in acute ACL-injured knees. The findings suggest that the contribution of KF injury to anterolateral rotatory knee laxity may be limited in the clinical setting.Oct. 2022, The American journal of sports medicine, 50(12) (12), 3265 - 3272, English, International magazineScientific journal
- (一社)日本臨床スポーツ医学会, Oct. 2022, 日本臨床スポーツ医学会誌, 30(4) (4), S212 - S212, Japanese
- BACKGROUND: Our objective was to evaluate the location of popliteal artery (PA) in osteotomy planes during high tibial osteotomy (HTO) and to determine a safer angle for screw drilling to the tibial tuberosity during distal tuberosity osteotomy (DTO). METHODS: Twenty knees in 20 patients who underwent contrast-enhanced computed tomography for cardiovascular diseases were examined. Osteotomy planes for open-wedge HTO (OWHTO) and hybrid closed-wedge HTO (hybrid CWHTO) were created using three-dimensional bone models. The distance from the posterior cortex of the tibia to the PA (dPC-PA) in the osteotomy planes was measured in the virtual osteotomy planes. The dangerous point (Point D1) was defined as the point 17.5 mm away from PA, setting the working length of the bone saw as 35 mm. The distance between the most medial point of the tibial cortex (Point M) and Point D1 in OWHTO and the most lateral point (Point L) and Point D1 in hybrid CWHTO were examined (dM-D1 and dL-D1, respectively). The location of Point D1 to the osteotomy line (%D1) was expressed as percentage, setting the start and end of the osteotomy line as 0% and 100%, respectively. To determine the safe angle for screw drilling in DTO, the angle between the line tangential to the medial cortex of the tibia and that passing through the center of the tibial tuberosity and PA were measured. RESULTS: In OWHTO and hybrid CWHTO, the mean dPC-PA was 10.6 mm (6.9-16.5 mm) and 10.2 mm (7.3-15.4 mm), respectively. The mean dM-D1 in OWHTO was 25.9 mm (24.6-27.2 mm) and dL-D1 in hybrid CWHTO was 5.1 mm (2.9-7.4 mm). The mean %D1 was 47.6 ± 3.7% in OWHTO and 9.3 ± 4.1% in hybrid CWHTO, respectively. The minimal angle between the two lines in DTO was 35.2°. CONCLUSION: PAs could run within 10 mm from the posterior cortex in the osteotomy planes of HTO. Therefore, proper posterior protection is necessary when cutting posterior cortex. An angle of less than 35° against the medial cortex line would be safe for screw fixation to avoid vascular injury in DTO.May 2022, Knee surgery & related research, 34(1) (1), 25 - 25, English, International magazineScientific journal
- Background: The relationship between meeting return-to-sport criteria and psychological readiness after anterior cruciate ligament (ACL) reconstruction is unknown. Purposes: To examine (1) whether patients who met 1 of the criteria for return to sport had higher psychological readiness than those who did not meet any of the criteria and (2) if those who met more criteria had higher psychological readiness. Study Design: Cross-sectional study; Level of evidence, 3. Methods: This study included 144 patients who underwent unilateral ACL reconstruction. All patients had regularly participated in some sport activities before an ACL rupture. At 12 months postoperatively, each patient completed 3 knee function tests (isokinetic quadriceps strength, isokinetic hamstring strength, and single-leg hop distance) and 2 self-reported measures (International Knee Documentation Committee [IKDC] 2000 subjective form and ACL-Return to Sport after Injury [ACL-RSI] scale); the ACL-RSI scale was used to measure psychological readiness to return to sport. The 4 criteria for return to sport were a limb symmetry index (LSI) ≥90% for each of the 3 function tests in addition to an IKDC score ≥90. Multivariate regression analysis was used to determine the association between meeting the individual criteria and the ACL-RSI score. In addition, the patients were divided into 5 groups according to the number of criteria met, and the Kruskal-Wallis and Steel-Dwass tests were used to compare the ACL-RSI scores among the groups. Results: Overall, 23 patients (16.0%) met none of the criteria for return to sport, 27 (18.7%) met 1 of the criteria, 34 (23.6%) met 2 criteria, 35 (24.3%) met 3 criteria, and 25 (17.4%) met all 4 criteria. Meeting the criteria for the hamstring strength LSI (P = .002), single-leg hop distance LSI (P = .004), and IKDC subjective score (P < .001) was each associated with higher ACL-RSI scores. Significant differences in ACL-RSI scores were found between patients who met none versus 2, 3, and 4 of the return-to-sport criteria (P < .001 for all) and between patients who met 1 versus 4 criteria (P < .001). Conclusion: Meeting return-to-sport criteria was positively associated with psychological readiness, and the patients who met multiple criteria had higher psychological readiness.May 2022, Orthopaedic journal of sports medicine, 10(5) (5), 23259671221093985 - 23259671221093985, English, International magazineScientific journal
- PURPOSE: The coronal lateral collateral ligament (LCL) sign has been reported to be associated with deviated position of the tibia on MRI due to anterior cruciate ligament (ACL) injuries. However, the relationships between LCL sign and clinical knee laxity evaluations are still unclear. The purpose of the study was to investigate the relationship between the coronal LCL sign and knee laxity measurements. METHODS: A retrospective review of unilateral ACL injured patients who underwent ACL reconstruction was performed. The coronal LCL sign was determined using magnetic resonance imaging (MRI). Clinical grading of the pivot-shift test, KT-1000 measurements, and quantitative measurements of the Lachman test and the pivot-shift test using an electromagnetic system, were compared between patients with positive and negative coronal LCL sign. A subgroup analysis of different age groups was then performed, dividing patients to adolescent (age ≤ 18 years) and adult (age > 18 years) groups. RESULTS: A total of 85 patients were enrolled, of which 45 patients had coronal LCL signs. The coronal LCL sign was not associated with the pivot-shift test clinical grading (n.s), KT-1000 measurement (n.s), the tibial translation during the Lachman test (n.s), or with tibia acceleration (n.s) and translation (n.s) during the pivot-shift test. The subgroup analysis also showed that the aforementioned parameters were not associated with the coronal LCL sign in either adolescent or adult subgroups. CONCLUSION: The occurrence of coronal LCL sign in MRI did not imply greater clinical knee laxity evaluations in patients with ACL tears. The knee laxity should routinely be evaluated regardless the coronal LCL sign. LEVEL OF EVIDENCE: Level III.Apr. 2022, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, English, International magazineScientific journal
- BACKGROUND: Total ankle arthroplasty (TAA) has become one of the standard surgical treatments for patients with end-stage ankle osteoarthritis (OA). In recent years, TAA with total talar prosthesis (combined TAA) has been used for ankle OA patients with talar osteonecrosis, with severe talar collapse, or with subtalar joint OA. The purpose of this study was to investigate the functional and clinical outcomes of combined TAA, compared with conventional TAA. METHODS: Forty-six ankles (44 patients, 32 women/12 men) that underwent conventional TAA with mean follow-up of 42 months, and 26 ankles (25 patients, 18 women/7 men) that underwent combined TAA with mean follow-up of 46 months were included. Clinical outcomes, which included ankle range of motion (ROM), the Japanese Society for Surgery of the Foot (JSSF) ankle-hindfoot scale, the Self-Administered Foot Evaluation Questionnaire (SAFE-Q), and complications were compared between the groups. RESULTS: The preoperative ROM was significantly worse in combined TAA for both dorsiflexion and plantarflexion; however, in the final ROM, there was no significant difference between the groups. There was no significant difference in JSSF scale and SAFE-Q between the groups. Revision rate was 10.9% in conventional TAA and 0% in combined TAA. CONCLUSION: In this small series, at an average of 3.5 years, we found no significant difference in clinical results between conventional TAA and combined TAA; however, the revision rate was higher in conventional TAA. LEVEL OF EVIDENCE: Level III, retrospective cohort study.Apr. 2022, Foot & ankle international, 43(4) (4), 529 - 539, English, International magazineScientific journal
- INTRODUCTION: Although anterior cruciate ligament reconstruction (ACLR) is considered a successful procedure, residual pivot-shift after surgery remains to be solved. The purpose of this study was to comprehensively evaluate the risk factors of residual pivot-shift after anatomic double-bundle (DB) ACLR. MATERIALS AND METHODS: A total of 164 patients who underwent primary anatomic DB-ACLR between January 2014 and December 2019 and screw removal after the index ACLR in our hospital were included in this retrospective case-control study. The manual pivot-shift test was performed under general anesthesia during screw removal surgery, and patients with grade 1 or higher pivot-shift were classified as the positive pivot-shift group, and those with grade 0 were defined as the negative pivot-shift group. Univariate and logistic regression analyses were performed to identify the factors associated with postoperative residual pivot-shift. Assessment included sex, age, time to surgery, preoperative Tegner activity scale, preoperative pivot-shift grade, preoperative anterior tibial translation by the KT-2000 arthrometer measurement, meniscus injury and its surgical procedure, knee hyperextension, cartilage damage, Segond fracture, medial and lateral posterior tibial slope, lateral-medial slope asymmetry, participation in pivoting sport/activity at the time of injury, and return to sports at postoperative one year line. RESULTS: Postoperative positive pivot-shift was observed in 14 (8.5%) of 164 patients. The KT-2000 measurement at 1-year postoperatively was significantly higher in the residual pivot-shift-positive group than in the negative group (P < 0.05). Logistic regression analysis revealed that age of patients < 20 years [P < 0.05, odds ratio (OR): 6.1)], preoperative pivot-shift grade (P < 0.05, OR: 4.4), and hyperextended knee (P < 0.05, OR: 11.8) were risk factors of postoperative pivot-shift. There were no statistically significant differences between other variables. CONCLUSIONS: Patients < 20 years of age, with high-grade preoperative pivot-shift, or hyperextended knees had a higher risk of residual postoperative pivot-shift.Apr. 2022, Archives of orthopaedic and trauma surgery, English, International magazineScientific journal
- Background/objective: The purpose of this study was to report the outcomes of a clinical trial conducted in Japan to assess the safety and effectiveness of third-generation autologous chondrocyte implantation (ACI) using IK-01 (CaReS™), which does not require flap coverage, in the treatment of patients with focal cartilage injury of the knee. Methods: This was an open label, exploratory clinical trial. Patients were enrolled between June 2012 and September 2016. The primary endpoint of the study was the International Knee Documentation Committee (IKDC) score at 52 weeks after implantation. The IKDC, Lysholm, and visual analog scale (VAS) scores were evaluated at the time of screening and at 4, 12, 24, 36, and 52 weeks after implantation. Improvements from the baseline scores were evaluated using the equation "(postoperative score) - (preoperative score)." Magnetic resonance imaging (MRI) was performed at 2, 12, 24, and 52 weeks after implantation, and MRI measurements were evaluated using T1 rho and T2 mapping. Results: Nine patients were enrolled in this study and were examined for safety. Product quality did not satisfy the specification in one patient, and bacterial joint infection occurred in one patient. As a result, seven patients were included in the outcome analyses. The mean IKDC score significantly improved from 36.4 preoperatively to 74.1% at 52 weeks after implantation (p < 0.0001). The mean Lysholm and VAS scores also significantly improved from 39.6 to 57.4 to 89.6 and 22.9, respectively, after surgery. In the MRI evaluation, the T1 rho and T2 values of the implanted area were similar to those of the surrounding cartilage at 52 weeks after implantation. Conclusions: Third generation ACI (IK-01) can be an effective treatment option for focal cartilage defects of the knee; however, surgeons must pay careful attention to the risk of postoperative joint infection.Apr. 2022, Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology, 28, 6 - 12, English, International magazineScientific journal
- BACKGROUND: It remains controversial whether satisfactory outcomes can be obtained following total ankle arthroplasty (TAA) without osteotomy in patients with severe varus ankle deformities. This study aimed to examine outcomes following TAA without concomitant osteotomies in patients with severe varus ankle alignment by comparing them with those in patients with neutral alignment. METHODS: Fifty-one patients (53 ankles; mean age, 71.4 ± 5.6 years) who underwent TAA using the TNK ankle prosthesis were examined (mean follow-up, 36.8 ± 17.8 months). Patients were allocated into groups according to the preoperative talar tilt (TT) angle: the neutral group (preoperative TT angle <10°; n = 37) and the varus group (preoperative TT angle ≥10°; n = 16). Outcome measures, including the Japanese Society for Surgery of the Foot scale, Self-Administered Foot Evaluation Questionnaire, ankle range of motion, and radiographic parameters, were assessed before surgery and at the final follow-up. RESULTS: Significant improvements were observed in clinical and radiographic outcomes in both groups after surgery. Postoperative Japanese Society for Surgery of the Foot scale and subscale scores of pain and shoes in the Self-Administered Foot Evaluation Questionnaire were not significantly different between the groups, whereas subscale scores of function, social, and health were greater in the varus group than in the neutral group at the final follow-up. Radiographic parameters, including TT angle and tibial axis-medial malleolus (TMM) angle, improved postoperatively and were not significantly different between the neutral (mean TT angle, 0.5 ± 0.7°; mean TMM angle, 16.0 ± 4.6°) and varus (meanTT angle, 0.4 ± 0.7°; meanTMM angle, 17.0 ± 5.3°) groups at the final follow-up. To achieve neutral alignment, adjunctive procedures were required more often in the varus group. CONCLUSIONS: Outcomes of TAA using the TNK ankle prosthesis were favorable in patients with severe varus ankle and in those with neutral ankle without concomitant osteotomy. Satisfactory outcomes could be achieved in patients with severe varus ankle alignment after TAA without concomitant osteotomy.2022, Journal of the American Podiatric Medical Association, 112(6) (6), English, International magazineScientific journal
- (一社)日本スポーツ理学療法学会, 2022, スポーツ理学療法学, 2(Suppl.) (Suppl.), OS - 02, Japanese膝前十字靱帯再建術後3ヵ月時点のACL-RSI scaleと術後2年以内の再損傷の関連
- (一社)日本理学療法学会連合, Dec. 2021, 理学療法学, 48(Suppl.1) (Suppl.1), 4 - 4, Japanese前十字靱帯再建術術前の膝伸展筋力と術後1年でのスポーツ復帰およびプレーに対する満足度の関連
- (公社)日本理学療法士協会-近畿ブロック, Dec. 2021, 近畿理学療法学術大会, 61回, S - 2, Japanese膝前十字靱帯再建術後の膝伸展筋力回復を予測する予測スコアの開発および検証
- (一社)日本理学療法学会連合, Dec. 2021, 理学療法学, 48(Suppl.1) (Suppl.1), 4 - 4, Japanese前十字靱帯再建術術前の膝伸展筋力と術後1年でのスポーツ復帰およびプレーに対する満足度の関連
- (公社)日本理学療法士協会-近畿ブロック, Dec. 2021, 近畿理学療法学術大会, 61回, S - 2, Japanese膝前十字靱帯再建術後の膝伸展筋力回復を予測する予測スコアの開発および検証
- Dec. 2021, Knee, 33, 282 - 289Scientific journal
- PURPOSE: To compare the biomechanical strength of different fixation configurations using suspensory buttons in a soft-tissue quadriceps tendon (QT) grafts in anterior cruciate ligament (ACL) reconstruction. METHODS: Forty bovine QTs, 6-cm long and 10-mm wide, were allocated into four groups with different suture configurations using suspensory buttons (n = 10 in each group): Group A, a baseball suture with a knot tied to the continuous loop with a suspensory button; Group B, same configuration as in Group A but with the knot tied at the opposite end of the baseball suture; Group C, a continuous loop with a suspensory button stitched directly to the QT with simple sutures, and Group D, a baseball suture tied directly to a suspensory button. Biomechanical testing was performed by preloading followed by cyclic loading for 500 cycles between 10 and 100 N. The length of elongation (mm) and maximum load to failure (N) were recorded, and compared among the four groups. RESULTS: Group C showed significantly smaller elongation (4.1 mm [95% CI 3.1-5.2]) than Group A (8.2 mm [95% CI 7.0-9.4]), Group B (10.5 mm [95% CI 7.7-13.3]), and Group D (8.5 mm [95% CI 7.0-9.9]) (A-C; P = 0.004, B-C; P = 0.0001, C-D; P = 0.0018). The maximum load to failure in Group C (386 N [95%CI 306-466]) was significantly higher than that in Group A (196 N [95% CI 141-251]), Group B (226 N [95% CI 164-289]), and Group D (212 N [95%CI 171-253]) (A-C; P = 0.0001, B-C; P = 0.0009, C-D; P = 0.0002). No significant differences were observed between Group A, B, and D in terms of elongation and maximum load to failure. CONCLUSION: The soft-tissue QT graft fixation configuration stitched directly to a continuous loop with suspensory button using simple sutures exhibits small elongation and high maximum load to failure among the four configurations. Regarding clinical relevance, direct suturing of the soft-tissue QT to a continuous loop with a suspensory button may be advantageous for femoral fixation in ACL reconstruction from a biomechanical perspective, and warrant future development of a novel fixation device using this principle.Nov. 2021, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, English, International magazineScientific journal
- Background: The Segond fracture can be observed in patients with an anterior cruciate ligament (ACL) tear. It is unclear whether the Segond fracture affects clinical outcomes after ACL reconstruction. Purpose: To investigate whether the presence of a concomitant Segond fracture affects clinical outcomes after ACL reconstruction and to compare clinical outcomes when a Segond fracture is repaired surgically or left unrepaired. Study Design: Systematic review; Level of evidence, 4. Methods: Three databases (PubMed, Embase, Cochrane Library) were searched in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines on July 27, 2020. Relevant studies regarding ACL injury with concomitant Segond fracture treated by primary ACL reconstruction were screened in duplicate. Data regarding patient characteristics and clinical outcomes were extracted. Descriptive data are presented, and a random-effects model was used to pool amenable data. Results: A total of 5 studies examining 2418 patients (987 female; 40.8%), mean age 25.4 years, were included in this study. There were 304 patients with a Segond fracture (mean age, 28.1 years; 35.9% female) and 2114 patients without a Segond fracture (mean age, 25.1 years; 41.5% female). Four studies directly compared outcomes between patients with an unrepaired Segond fracture and no Segond fracture. One study reported 12 patients who underwent ACL reconstruction and repair of a Segond fracture. Among 4 studies, 11 of 292 (3.8%) graft failures/revision surgeries were reported in the groups that had Segond fracture, whereas 145 of 2114 (6.9%) graft failures/revision surgeries were reported in groups that did not have Segond fracture. No significant difference was observed in the risk of graft failure between the 2 groups, with a pooled risk ratio of 0.59 (95% CI, 0.32-1.07; P = .08; I2 = 0%). No clinically significant differences were observed with regard to International Knee Document Committee score, Lysholm score, Tegner activity scale, and postoperative knee laxity between the group with Segond fracture and those without. Conclusion: An unrepaired Segond fracture does not appear to have any significant negative effect on postoperative stability or risk of graft failure or revision surgery after ACL reconstruction. Future prospective studies may be warranted to confirm the finding that patients with combined ACL injury and Segond fracture may have outcomes comparable with those of ACL-injured patients without a Segond fracture when isolated ACL reconstruction is performed.SAGE Publications, Oct. 2021, The American Journal of Sports Medicine, 51(2) (2), 525 - 533Scientific journal
- (一社)日本臨床スポーツ医学会, Oct. 2021, 日本臨床スポーツ医学会誌, 29(4) (4), S174 - S174, Japanese
- Oct. 2021, Arthroscopy - Journal of Arthroscopic and Related Surgery, 37(10) (10), 3177 - 3186
- Oct. 2021, International Journal of Molecular Sciences, 22(19) (19)Scientific journal
- THE CENTRAL JAPAN ASSOCIATION OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY, Sep. 2021, The Central Japan Journal of Orthopaedic Surgery & Traumatology, 64(5) (5), 609 - 610, Japanese
- INTRODUCTION: Stenosing tenosynovitis is a chronic disorder frequently observed in finger triggering of a digit. Regarding the toes, although entrapment of the flexor hallucis longus (FHL) has already been reported in a few cases among sports players, the clinical condition is uncommon. Besides, the case without any specific causes is particularly rare. CASE REPORT: We report the case of a 26-year-old male with FHL entrapment. Even though he was unaware of any cause, he felt tenderness on the posteromedial side of his left ankle, and his great toe was locked in the flex position. Magnetic resonance imaging indicated effusion in the tendon sheath of the FHL and the possibility of a partial tear of the FHL. We hypothesized that the scar tissue secondary to the partial tear of the FHL may have been irritated at the retrotalar pulley below the sustentaculum tali, where the FHL glides. Therefore, posterior ankle arthroscopy was performed for the treatment of the FHL entrapment. CONCLUSION: Orthopedic surgeons should list this pathology as a differential diagnosis of posterior ankle pain, even in non-athletes.Apr. 2021, Journal of orthopaedic case reports, 11(4) (4), 70 - 74, English, International magazineScientific journal
- Mar. 2021, The Knee, 29, 298 - 304, English, International magazineScientific journal
- INTRODUCTION: Previous studies have reported that alignment changes depend on the patient's position in orthopedic surgery. However, it has not yet been well examined how the patient's position affects the preoperative planning in high-tibial osteotomy (HTO). Therefore, the aim of this study was to investigate the effects of the patient's position on preoperative planning in HTO. MATERIALS AND METHODS: A total of 60 knees in 55 patients who underwent HTO were retrospectively examined. Virtual preoperative planning for medial open-wedge HTO (OWHTO), lateral closed-wedge HTO (CWHTO), and hybrid CWHTO were performed by setting the percentage of the weight-bearing line (%WBL) at 62% as an optimal alignment. The correction angle differences between the supine and standing radiographs were measured. The virtual %WBL (v%WBL) was determined by applying the correction angle obtained from the standing radiograph to the supine radiograph. The %WBL discrepancy (%WBLd) was calculated as v%WBL - 62 (%) to predict the possible correction errors during surgeries. A single regression analysis was performed to examine the correlation between the correction angle difference and %WBLd. RESULTS: The mean correction angle was significantly higher when the preoperative planning was based on standing radiographs than when based on supine radiographs (P < 0.001), and the mean difference was 2.2 ± 1.5°. The difference between the two conditions in the medial opening gaps for OWHTO, lateral wedge sizes (mm) for CWHTO, and hybrid CWHTO were 2.6 ± 2.0, 2.3 ± 1.6, and 1.9 ± 1.4, respectively. The mean v%WBL was 71.2% ± 7.3%, and the mean %WBLd was 10.1% ± 7.4%. A single regression analysis revealed a linear correlation between the correction angle difference and %WBLd (%WBLd = 4.72 × correction angle difference + 0.08). No statistically significant difference in the parameters was found between the supine and standing radiographs postoperatively. CONCLUSIONS: We found significant differences in the estimated correction angles between the supine and standing radiographs in the planning for HTO. Therefore, surgeons should carefully consider the difference between supine and standing radiographs and estimate the possible correction error during surgery when planning a HTO.Mar. 2021, Knee surgery & related research, 33(1) (1), 8 - 8, English, International magazineScientific journal
- This is a case report of a 26-year-old male who sustained a Segond fracture in the context of an acute anterior cruciate ligament (ACL) rupture incurred while downhill skiing. Further work-up revealed that the Segond fracture consisted of two distinct fragments with separate soft tissue attachments, including the capsule-osseous layer of the iliotibial band and the short arm of the biceps femoris. Imaging showed interval healing of the Segond fracture between initial presentation and the performance of arthroscopic ACL reconstruction approximately 4 months later. As intraoperative evaluation demonstrated that anatomic ACL reconstruction restored translational and rotatory knee stability, surgical repair of the Segond fracture, or the anterolateral complex of the knee more broadly, was not required. Maintenance of translational and rotatory knee stability was confirmed at serial post-operative appointments up through final follow-up.Level of evidence Level V.Mar. 2021, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, English, International magazineScientific journal
- Feb. 2021, Stem cell research & therapy, 12(1) (1), 110 - 110, English, International magazineScientific journal
- Feb. 2021, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 29(2) (2), 398 - 404, English, International magazineScientific journal
- Jan. 2021, Journal of clinical medicine, 10(2) (2), 1 - 16, English, International magazineScientific journal
- Jan. 2021, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 29(11) (11), 3743 - 3750, English, International magazineScientific journal
- (一社)日本スポーツ理学療法学会, 2021, スポーツ理学療法学, 1(Suppl.) (Suppl.), OS - 03, Japanese
- Nov. 2020, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 28(11) (11), 3504 - 3510, English, International magazineScientific journal
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S188 - S188, Japanese
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S195 - S195, Japanese
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S197 - S197, Japanese
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S203 - S203, Japanese
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S203 - S203, Japanese
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S262 - S262, Japanese
- (一社)中部日本整形外科災害外科学会, Oct. 2020, 中部日本整形外科災害外科学会雑誌, 63(秋季学会) (秋季学会), 220 - 220, Japanese膝前十字靱帯再建術後脛骨骨髄炎に対し抗生剤入りセメント充填術を施行した一例
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S197 - S197, Japanese
- (一社)日本臨床スポーツ医学会, Oct. 2020, 日本臨床スポーツ医学会誌, 28(4) (4), S195 - S195, Japanese
- (一社)中部日本整形外科災害外科学会, Oct. 2020, 中部日本整形外科災害外科学会雑誌, 63(秋季学会) (秋季学会), 220 - 220, Japanese膝前十字靱帯再建術後脛骨骨髄炎に対し抗生剤入りセメント充填術を施行した一例
- (公社)日本整形外科学会, Sep. 2020, 日本整形外科学会雑誌, 94(8) (8), S1925 - S1925, Japanese
- (公社)日本整形外科学会, Sep. 2020, 日本整形外科学会雑誌, 94(8) (8), S1929 - S1929, Japanese
- (公社)日本整形外科学会, Sep. 2020, 日本整形外科学会雑誌, 94(8) (8), S2026 - S2026, Japanese
- (一社)中部日本整形外科災害外科学会, Sep. 2020, 中部日本整形外科災害外科学会雑誌, 63(5) (5), 829 - 830, Japanese
- (公社)日本整形外科学会, Sep. 2020, 日本整形外科学会雑誌, 94(8) (8), S1925 - S1925, JapaneseACL損傷膝に合併する半月板損傷が膝不安定性に与える影響の定量評価による検討
- (公社)日本整形外科学会, Sep. 2020, 日本整形外科学会雑誌, 94(8) (8), S1929 - S1929, Japanese魚鱗由来高強度コラーゲンフィブリル線維による膝靱帯修復促進効果の検討
- (公社)日本整形外科学会, Sep. 2020, 日本整形外科学会雑誌, 94(8) (8), S2026 - S2026, Japanese膝前十字靱帯解剖学的二重束再建術での脛骨骨孔重複のリスク因子についての検討
- Aug. 2020, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 28(8) (8), 2663 - 2667, English, International magazine[Refereed]Scientific journal
- BACKGROUND: Sex-related differences of plantar pressure distribution during activities should be thoroughly inspected as it can help establish treatment and prevention strategies for foot and ankle problems. In-shoe measurement systems are preferable without space and activity restrictions; however, previously reported systems are still heavy and bulky and induce unnatural movement. Therefore, a slim and light plantar pressure sensor was newly developed to detect the effect of sex difference on plantar pressure during standing and walking. METHODS: One-hundred healthy adult volunteers (50 women and 50 men) were recruited. Ten plantar pressure sensors were implanted in a 1-mm thick insole, with a total weight of 29 g. Plantar pressure was recorded with 200 Hz during 3 s of standing and while walking 10 steps. The maximum loads during standing and walking were analyzed in each sensor, and the results were compared between different areas of the foot in the antero-posterior direction and the medio-lateral direction and between different time points. The movement of the center of pressure (COP) during walking was also evaluated. Analyses were adjusted for body mass index and gait speed. RESULTS: The movement of COP was constant for both sexes. In all cases, the maximum load was observed on the medial of the foot. Women had a significantly higher peak pressure on the hallux, toes, forefoot, and medial aspect of the foot compared to men while standing and walking (p < .05). CONCLUSIONS: A newly introduced in-shoe plantar pressure sensor demonstrated a typical loading transition pattern of the foot. Furthermore, higher plantar pressure in the forefoot was detected in healthy women as compared to men during standing and walking activities.Jul. 2020, Journal of foot and ankle research, 13(1) (1), 40 - 40, English, International magazineScientific journal
- Background: The tie-grip suture can fix radial tears more rigidly than simple conventional sutures. However, one shortcoming is the residual gap at the central margin of the tear. The tie-grip suture was modified to address this issue and named the "cross tie-grip suture." Purpose/Hypothesis: The purpose of this study was to compare the suture stability and strength among 4 suturing techniques: the original tie-grip, cross tie-grip, and 2 conventional sutures (double horizontal and cross). It was hypothesized that the cross tie-grip suture would show the least displacement and resist the greatest maximum load. Study Design: Controlled laboratory study. Methods: A total of 40 fresh-frozen porcine knees were dissected to acquire 80 menisci; 20 menisci were tested in each suture group. A radial tear was created at the middle third of the meniscal body. Repair was performed with the following: original tie-grip, cross tie-grip, double horizontal, and cross sutures. The mechanical strength of sutured menisci was evaluated using a tensile testing machine. All menisci underwent submaximal loading and load to failure. The gap distance and ultimate failure load were compared using analysis of variance. The failure mode was recorded after load-to-failure testing. Results: Displacement after 500 cycles was significantly smaller in the cross tie-grip group (0.4 ± 0.3 mm) compared with the tie-grip (0.9 ± 0.6 mm), double horizontal (1.2 ± 0.7 mm), and cross suture groups (1.4 ± 0.6 mm) (P < .05). The ultimate failure load was significantly greater in the cross tie-grip (154.9 ± 29.0 N) and tie-grip (145.2 ± 39.1 N) groups compared with the double horizontal (81.2 ± 19.9 N) and cross suture groups (87.3 ± 17.7 N) (P < .05). Tissue failure was the most common mode of failure in all groups. Conclusion: Upon repair of radial meniscal tears, the cross tie-grip suture showed less displacement compared with that of the tie-grip, double horizontal, and cross sutures and demonstrated equivalent load to failure to that of the tie-grip suture at time zero. Clinical Relevance: The cross tie-grip suture provided high resistance to displacement after repair of radial tears and may be advantageous in healing for radial meniscal tears.Jul. 2020, Orthopaedic journal of sports medicine, 8(7) (7), 2325967120935810 - 2325967120935810, English, International magazineScientific journal
- Jun. 2020, Foot and ankle surgery : official journal of the European Society of Foot and Ankle Surgeons, 27(3) (3), 311 - 315, English, International magazineScientific journal
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- (一社)中部日本整形外科災害外科学会, Apr. 2020, 中部日本整形外科災害外科学会雑誌, 63(春季学会) (春季学会), 195 - 195, Japanese高位脛骨骨切り術における術後立位・臥位での下肢アライメントの検討
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- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(2) (2), S322 - S322, Japanese造影CTによる高位脛骨骨切り術と脛骨粗面下骨切り術における膝窩動脈損傷のリスク評価
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(2) (2), S405 - S405, Japanese半月板損傷のバイオメカニクスupdate 半月板損傷がACL損傷・再建膝のバイオメカニクスに及ぼす影響
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(2) (2), S465 - S465, Japanese足関節・足部疾患に対する鏡視下手術の最先端 後足部疾患に対する後足部内視鏡手術の最先端
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(2) (2), S473 - S473, Japaneseわが国の人工足関節置換術の治療戦略-2020- Combined TAA人工足関節の実際
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(3) (3), S738 - S738, Japanese3DMRIによる足関節外側靱帯損傷術前後の踵腓靱帯の画像評価に対する検者間信頼性の検討
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(3) (3), S952 - S952, Japanese重度の内反動揺性を伴う足関節不安定症に対する鏡視下外側靱帯修復術の治療成績
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(3) (3), S1062 - S1062, Japanese人工距骨併用人工足関節置換術後の踵骨および舟状骨における骨嚢胞性変化
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(3) (3), S1062 - S1062, Japanese変形性足関節症の病期分類と人工足関節置換術後の臨床成績の関係
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(3) (3), S1063 - S1063, Japanese当科における人工足関節置換術(TAA)と人工距骨併用人工足関節置換術(combined TAA)の治療成績の比較
- (公社)日本整形外科学会, Mar. 2020, 日本整形外科学会雑誌, 94(3) (3), S1188 - S1188, Japanese人工足関節置換術(TAA)による荷重軸の変化について
- Feb. 2020, The American journal of sports medicine, 48(2) (2), NP25-NP27, English, International magazine
- Feb. 2020, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 28(2) (2), 538 - 543, English, International magazine[Refereed]Scientific journal
- 琉球医学会, 2020, 琉球医学会誌, 39(1-4) (1-4), 94 - 94, Japanese健常成人における男性と女性の静止時及び歩行時の足底圧の評価 In shoe systemを用いた解析
- Dec. 2019, The American journal of sports medicine, 47(14) (14), 3373 - 3380, English, International magazine[Refereed]Scientific journal
- Dec. 2019, The American journal of sports medicine, 47(14) (14), 3381 - 3388, English, International magazine[Refereed]Scientific journal
- (一社)日本臨床スポーツ医学会, Nov. 2019, 日本臨床スポーツ医学会誌, 27(4) (4), S173 - S173, Japanese
- (一社)日本臨床スポーツ医学会, Nov. 2019, 日本臨床スポーツ医学会誌, 27(4) (4), S249 - S249, Japanese
- (一社)日本臨床スポーツ医学会, Nov. 2019, 日本臨床スポーツ医学会誌, 27(4) (4), S250 - S250, Japanese
- Nov. 2019, The American journal of sports medicine, 47(13) (13), 3195 - 3202, English, International magazine[Refereed]Scientific journal
- (一社)日本関節病学会, Oct. 2019, 日本関節病学会誌, 38(3) (3), 225 - 225, Japanese変形性膝関節症に対する骨切り術の最先端 骨軟骨柱移植を併用した高位脛骨骨切り術
- (公社)日本整形外科学会, Sep. 2019, 日本整形外科学会雑誌, 93(8) (8), S1920 - S1920, Japanese半月板横断裂に対するcross tie grip sutureと従来縫合法の力学試験による比較
- Sep. 2019, Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 37(9) (9), 1920 - 1928, English, International magazine[Refereed]Scientific journal
- Jul. 2019, Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 27(7) (7), 2354 - 2360, English, International magazine[Refereed]Scientific journal
- Mar. 2019, Knee Surgery, Sports Traumatology, Arthroscopy, 27(3) (3), 797 - 804[Refereed]Scientific journal
- Mar. 2019, Journal of tissue engineering and regenerative medicine, 13(3) (3), 423 - 432, English, International magazine[Refereed]Scientific journal
- Dec. 2018, Knee Surgery, Sports Traumatology, Arthroscopy, 26(12) (12), 3717 - 3723[Refereed]Scientific journal
- Nov. 2018, Knee Surgery, Sports Traumatology, Arthroscopy, 26(11) (11), 3474 - 3481[Refereed]Scientific journal
- Sep. 2018, American Journal of Sports Medicine, 46(11) (11), 2646 - 2652[Refereed]Scientific journal
- Aug. 2018, Arthroscopy - Journal of Arthroscopic and Related Surgery, 34(8) (8), 2476 - 2477[Refereed]Scientific journal
- Jun. 2018, American Journal of Sports Medicine, 46(7) (7), 1566 - 1574[Refereed]Scientific journal
- May 2018, Knee Surgery, Sports Traumatology, Arthroscopy, 26(5) (5), 1305 - 1310[Refereed]Scientific journal
- May 2018, Knee Surgery, Sports Traumatology, Arthroscopy, 26(5) (5), 1319 - 1325[Refereed]Scientific journal
- Apr. 2018, Knee Surgery, Sports Traumatology, Arthroscopy, 26(4) (4), 1145 - 1151[Refereed]Scientific journal
- Feb. 2018, Knee Surgery, Sports Traumatology, Arthroscopy, 26(2) (2), 485 - 490[Refereed]Scientific journal
- Feb. 2018, Knee Surgery, Sports Traumatology, Arthroscopy, 26(2) (2), 448 - 454[Refereed]Scientific journal
- Lead, 2018, Journal of ISAKOS: Joint Disorders & Orthopaedic Sports Medicine, 3(1) (1), 33 - 37, EnglishPatient-reported outcome measures following anterior cruciate ligament reconstruction are not related to dynamic knee extension angle[Refereed]Scientific journal
- 2018, Journal of ISAKOS: Joint Disorders & Orthopaedic Sports Medicine, 3(4) (4), 193 - 197, EnglishPassive teaching is not as effective as active teaching for learning the standard technique of pivot shift test[Refereed]Scientific journal
- Lead, 2018, Annals of Joint, 3(2) (2), 110 - 110, EnglishThe diagnosis of early osteoarthritis of the knee using magnetic resonance imaging[Refereed][Invited]Scientific journal
- Jan. 2018, Clinics in Sports Medicine, 37(1) (1), 41 - 47
- Oct. 2017, Journal of Arthroplasty, 32(10) (10), 2995 - 2999[Refereed]Scientific journal
- Jul. 2017, American Journal of Sports Medicine, 45(8) (8), 1829 - 1836[Refereed]Scientific journal
- Jun. 2017, Arthroscopy - Journal of Arthroscopic and Related Surgery, 33(6) (6), 1204 - 1210[Refereed]Scientific journal
- May 2017, Connective Tissue Research, 58(3-4) (3-4), 386 - 392[Refereed]Scientific journal
- Apr. 2017, Knee Surgery, Sports Traumatology, Arthroscopy, 25(4) (4), 1279 - 1289[Refereed]Scientific journal
- Jan. 2017, Knee Surgery, Sports Traumatology, Arthroscopy, 25(1) (1), 272 - 276[Refereed]Scientific journal
- Jan. 2017, Knee Surgery, Sports Traumatology, Arthroscopy, 25(1) (1), 123 - 128[Refereed]Scientific journal
- Dec. 2016, Current Reviews in Musculoskeletal Medicine, 9(4) (4), 348 - 360
- Jul. 2016, Arthroscopy - Journal of Arthroscopic and Related Surgery, 32(7) (7), 1359 - 1366[Refereed]Scientific journal
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- Jan. 2016, ACL Injury and its Treatment, 291 - 301[Refereed]In book
- Dec. 2015, BMC Musculoskeletal Disorders, 16(1) (1), 390[Refereed]Scientific journal
- Oct. 2015, Knee Surgery, Sports Traumatology, Arthroscopy, 23(10) (10), 2876 - 2881[Refereed]Scientific journal
- Aug. 2015, Osteoarthritis and Cartilage, 23(8) (8), 1412 - 1420[Refereed]Scientific journal
- Jul. 2015, Journal of Arthroplasty, 30(7) (7), 1155 - 1159[Refereed]Scientific journal
- Jun. 2015, Orthopedics, 38(6) (6), e529 - e535[Refereed]Scientific journal
- May 2015, Journal of Advanced Computational Intelligence and Intelligent Informatics, 19(3) (3), 372 - 380[Refereed]Scientific journal
- Apr. 2015, OSTEOARTHRITIS AND CARTILAGE, 23, A273 - A274, EnglishSIMVASTATIN STIMULATES MENISCAL HEALING IN A RABBIT MENISCAL DEFECT MODEL[Refereed]Scientific journal
- Mar. 2015, American Journal of Sports Medicine, 43(3) (3), 700 - 708[Refereed]Scientific journal
- Jan. 2015, Clinical Biomechanics, 30(1) (1), 95 - 99[Refereed]Scientific journal
- Dec. 2014, Biomaterials, 35(37) (37), 9904 - 9911[Refereed]Scientific journal
- Oct. 2014, World Automation Congress Proceedings, 336 - 339[Refereed]International conference proceedings
- Sep. 2014, IEEE International Conference on Fuzzy Systems, 1831 - 1836[Refereed]International conference proceedings
- Sep. 2014, Journal of Advanced Computational Intelligence and Intelligent Informatics, 18(5) (5), 830 - 838[Refereed]Scientific journal
- Jul. 2014, Orthopaedic Journal of Sports Medicine, 2[Refereed]Scientific journal
- Jul. 2014, Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology, 1(3) (3), 102 - 105[Refereed]Scientific journal
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- Feb. 2014, 2014 Joint 7th International Conference on Soft Computing and Intelligent Systems, SCIS 2014 and 15th International Symposium on Advanced Intelligent Systems, ISIS 2014, 741 - 744[Refereed]International conference proceedings
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- 2025, 日本人工関節学会プログラム・抄録集, 55th (CD-ROM)人工足関節置換術後の距骨コンポーントの沈下量と骨密度の関連
- 2025, 中部日本整形外科災害外科学会雑誌, 68当科における膝周囲骨切り術
- 2025, 関西関節鏡・膝研究会プログラム演題抄録, 37th片側下肢切断後義足使用患者に生じた対側変形性膝関節症に対し,膝周囲骨切り術を実施した2例
- 2025, 中部日本整形外科災害外科学会雑誌, 68成人サッカー選手に生じた大腿骨滑車部離断性骨軟骨炎に対して手術加療を行いスポーツ復帰した2例
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(2) (2)Outside-in法を用いた解剖学的前十字靱帯再建術
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(2) (2)スポーツ活動を目標とした患者に対するAKOの至適アラインメント
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(2) (2)対側非損傷膝のpivot-shift様現象は前十字靱帯再建術後のpivot-shift現象残存に関連する
- 2025, 日本軟骨代謝学会プログラム・抄録集, 37thAnalysis of inhibitory effects of SIRT1 against meniscus degeneration
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)骨端線閉鎖前患者に対する前十字靱帯再建術の移植腱無作為化比較試験-国際多施設共同研究-
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)内側半月板後根断裂に伴う脛骨側骨髄病変に関する調査
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)前十字靱帯再建時における内側半月板ramp病変合併が術後臨床成績に与える影響
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)人工足関節置換術における距骨コンポーネント沈下に関与する因子の検討
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)変形性膝関節症を伴った前十字靱帯損傷膝の不安定性の特徴
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)人工足関節置換術後の荷重軸の経時的変化
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)内側半月板後根断裂に対する保存加療の前向き観察研究
- 2025, 日本整形外科学会雑誌(CD-ROM), 99(3) (3)慢性足関節不安定症の超音波画像AI診断
- 2025, 日本再生医療学会総会(Web), 24thTissue engineering technology in orthopaedic surgery-Regenerative Medicine for bone and joint
- 2024, 理学療法兵庫, (30) (30)前十字靭帯再建術後1年以降の再断裂要因:後方視調査による予備的研究
- 2024, 日本臨床スポーツ医学会誌, 32(4 (CD-ROM)) (4 (CD-ROM))前十字靱帯損傷患者における対側非損傷膝のpivot-shift様現象定量評価と患側不安定性との関連
- 2024, 日本臨床スポーツ医学会誌, 32(4 (CD-ROM)) (4 (CD-ROM))中高年の膝蓋大腿関節症に対して脛骨粗面前内方移行術を併用した軟骨修復術を行いスポーツ復帰した2例
- 2024, 日本臨床スポーツ医学会誌, 32(4 (CD-ROM)) (4 (CD-ROM))若年アスリートのスポーツ外傷発生の背景にある身体的,心理的,社会的,状況因子の混合研究法による探索的研究
- 2024, 日本臨床スポーツ医学会誌, 32(4 (CD-ROM)) (4 (CD-ROM))ノットレスアンカーを用いたDasDe変法による腓骨筋腱脱臼の臨床成績
- 2024, 中部日本整形外科災害外科学会雑誌, 67半月板治療の現状と問題点
- 2024, 中部日本整形外科災害外科学会雑誌, 67再再建術-ACL再建+LET-
- 2024, 日本臨床スポーツ医学会誌, 32(4 (CD-ROM)) (4 (CD-ROM))1.8mmソフトスーチャーアンカーを用いた内側膝蓋大腿靭帯再建術における臨床成績
- 2024, 中部日本整形外科災害外科学会雑誌, 67半月板損傷における膝周囲骨切り術
- 2024, 日本整形外科学会雑誌(CD-ROM), 98(8) (8)足関節外側靱帯不安定症患者における前方引き出しテスト時の電磁気センサと静電容量型センサ素子の引き出し量の相関について
- 2024, 日本整形外科学会雑誌(CD-ROM), 98(8) (8)内側閉鎖式楔状遠位大腿骨骨切り術での非線形有限要素解析を用いたヒンジ骨折予測
- 2024, 日本整形外科学会雑誌(CD-ROM), 98(8) (8)膝蓋骨脱臼における三次元CTモデルを用いた大腿骨滑車形状評価-単純X線像との比較検討-
- 2024, 日本整形外科学会雑誌(CD-ROM), 98(8) (8)変形性膝関節症誘発および老化促進マウスにおいてtemsirolimus関節内注射は変形性膝関節症進行を遅延する
- 2024, 日本整形外科学会雑誌(CD-ROM), 98(8) (8)SIRT1の半月板変性抑制効果に関する検討
- 2022, JOSKAS-JOSSM (Web), 2022当科におけるPCL損傷の治療戦略
- 2022, JOSKAS-JOSSM (Web), 2022膝前十字靱帯再建術 過去・現在・未来
- 2022, JOSKAS-JOSSM (Web), 2022Os subfibulareを伴う足関節不安定症に対する鏡視下外側靱帯修復術の術後2年成績
- 2022, JOSKAS-JOSSM (Web), 2022前十字靱帯損傷膝における前外側支持組織及び腸脛靭帯Kaplan線維損傷頻度と術前Pivot-shift testの関連
- 2022, JOSKAS-JOSSM (Web), 2022二重束前十字靱帯再建術における合併半月板損傷と術後変形性関節症変化の関連
- 2022, JOSKAS-JOSSM (Web), 2022前十字靭帯損傷膝における脛骨後方傾斜角と術前Pivot-shift現象の関連
- 2022, JOSKAS-JOSSM (Web), 2022慢性足関節外側不安定症に対するKnotless anchorを用いた鏡視下外側靱帯修復術の臨床成績
- 2022, JOSKAS-JOSSM (Web), 2022膝前十字靭帯再建術後3か月時点のACL-Return to Sports after Injury scaleと術後1年以内の再損傷の関連
- 2022, JOSKAS-JOSSM (Web), 2022前十字靱帯損傷により膝関節の軸回旋方向への関節弛緩性は増加していた
- 2022, JOSKAS-JOSSM (Web), 2022膝前十字靱帯再断裂に対する前十字靱帯再再建術後の再再断裂リスク因子の検討
- (一社)中部日本整形外科災害外科学会, Sep. 2021, 中部日本整形外科災害外科学会雑誌, 64(秋季学会) (秋季学会), 38 - 38, Japanese膝関節における再生医療の基礎と臨床 当科における軟骨損傷および変形性膝関節症に対する再生医療の基礎と臨床
- (一社)中部日本整形外科災害外科学会, Sep. 2021, 中部日本整形外科災害外科学会雑誌, 64(秋季学会) (秋季学会), 244 - 244, Japanese巨大な骨嚢胞を伴う距骨骨軟骨損傷に対する治療経験
- (公社)日本整形外科学会, Aug. 2021, 日本整形外科学会雑誌, 95(8) (8), S1566 - S1566, Japanese
- (公社)日本整形外科学会, Aug. 2021, 日本整形外科学会雑誌, 95(8) (8), S1634 - S1634, Japanese
- (公社)日本整形外科学会, Aug. 2021, 日本整形外科学会雑誌, 95(8) (8), S1728 - S1728, Japanese
- (公社)日本整形外科学会, Aug. 2021, 日本整形外科学会雑誌, 95(8) (8), S1790 - S1790, Japanese
- (公社)日本整形外科学会, Aug. 2021, 日本整形外科学会雑誌, 95(8) (8), S1793 - S1793, Japanese
- (公社)日本整形外科学会, Aug. 2021, 日本整形外科学会雑誌, 95(8) (8), S1795 - S1795, Japanese
- (株)医学書院, Jun. 2021, 臨床整形外科, 56(6) (6), 789 - 794, Japanese
- (株)文光堂, May 2021, 臨床スポーツ医学, 38(5) (5), 540 - 545, Japanese
- 関西関節鏡・膝研究会, Mar. 2021, 関西関節鏡・膝研究会プログラム・演題抄録, 33回, 33 - 33, Japanese骨端線閉鎖前の習慣性膝蓋骨脱臼に対してproximal realignment法と内側膝蓋大腿靱帯再建術の併用により良好な成績を得た一例
- 関西関節鏡・膝研究会, Mar. 2021, 関西関節鏡・膝研究会プログラム・演題抄録, 33回, 41 - 41, Japanese膝蓋骨脱臼・不安定症の治療戦略 大腿骨滑車部低形成を伴う症例に対する治療
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(2) (2), S199 - S199, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(2) (2), S226 - S226, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(3) (3), S631 - S631, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(3) (3), S808 - S808, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(3) (3), S842 - S842, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(3) (3), S845 - S845, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(3) (3), S851 - S851, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(3) (3), S1095 - S1095, Japanese
- (公社)日本整形外科学会, Mar. 2021, 日本整形外科学会雑誌, 95(3) (3), S1096 - S1096, Japanese
- (一社)中部日本整形外科災害外科学会, Mar. 2021, 中部日本整形外科災害外科学会雑誌, 64(春季学会) (春季学会), 14 - 14, Japanese前十字靱帯損傷の治療戦略 正常膝機能を取り戻すために
- (一社)中部日本整形外科災害外科学会, Mar. 2021, 中部日本整形外科災害外科学会雑誌, 64(春季学会) (春季学会), 122 - 122, Japanese整形外科勤務医における内側半月板後根損傷の認知度および治療に関するアンケート調査
- (一社)中部日本整形外科災害外科学会, Mar. 2021, 中部日本整形外科災害外科学会雑誌, 64(春季学会) (春季学会), 135 - 135, Japanese大きな欠損部を伴うアキレス腱再断裂に対してPercutaneous Achilles Repair Systemを用いて治療した1例
- 骨端線閉鎖前の習慣性膝蓋骨脱臼に対してproximal realignment法と内側膝蓋大腿靱帯再建術の併用により良好な成績を得た一例症例は11歳女児で、右膝関節痛を主訴とした。特に誘因なく主訴を認め、右膝蓋骨脱臼の診断のもと、ニーブレイス固定で経過観察されていたが、その後も脱臼を繰り返し、初回脱臼4ヵ月後に紹介受診した。明らかな関節可動域の制限はなく、右膝単純X線像上、骨端線は閉鎖前で、膝蓋骨高は正常範囲内であり、膝蓋骨は右膝屈曲30°で亜脱臼位を示し、60°では完全に脱臼した。また、大腿骨膝蓋骨滑車の軽度低形成とcongruence angleの開大を認め、右膝の骨端線閉鎖前の大腿骨膝蓋骨滑車低形成を伴う習慣性膝蓋骨脱臼と診断して手術治療を計画し、大腿四頭筋腱部分切離術を含めたproximal realignment法と内側膝蓋大腿靱帯再建術を併用した。術後の膝蓋骨低位は認めず、術後1.5年で疼痛・再脱臼なく経過している。本術式は習慣性膝蓋骨脱臼に対する治療法の一つになり得ることが示唆された。関西関節鏡・膝研究会, 2021, 関西関節鏡・膝研究会誌, 33(1) (1), np7 - np9, Japanese
- (株)医学出版, Nov. 2020, 月刊レジデント, 13(7) (7), 105 - 114, Japanese【スポーツ傷害の画像診断】膝内障(十字靱帯、側副靱帯、半月板損傷)の画像診断
- 当院で内側型変形性膝関節症に対し高位脛骨骨切り術(HTO)を施行した34例36膝(男性18膝、女性18膝、手術時平均年齢59.7±8.2歳)を対象に、術前・術後の立位・臥位での下肢アライメント変化を検討した。その結果、術前は全ての計測項目において立位・臥位での有意差が認められたが、術後は全ての計測項目において有意差を認めず、術中臥位でのアライメント評価は術後アライメントの指標として有用である可能性が示唆された。(一社)中部日本整形外科災害外科学会, Sep. 2020, 中部日本整形外科災害外科学会雑誌, 63(5) (5), 829 - 830, Japanese
- (一社)日本関節病学会, Sep. 2020, 日本関節病学会誌, 39(3) (3), 253 - 253, Japanese半月板温存療法の最先端 半月板切除後の自然経過
- 関西関節鏡・膝研究会, Mar. 2020, 関西関節鏡・膝研究会プログラム・演題抄録, 32回, 21 - 21, Japanese膝関節 骨端線閉鎖前のACL損傷膝に対するTibial Tunnelを作成しないSBによるPhyseal-Sparing Techniquesを用いた2症例の治療成績
- 関西関節鏡・膝研究会, Mar. 2020, 関西関節鏡・膝研究会プログラム・演題抄録, 32回, 32 - 32, JapanesePatellofemoral Instability-Case-based discussion 内側膝蓋大腿靱帯再建術を中心とした治療
- スポーツ傷害フォーラム, 2020, スポーツ傷害, 25, 38 - 38, Japaneseスポーツ選手における半月板単独損傷に対する半月板縫合術の治療成績
- スポーツ傷害フォーラム, 2020, スポーツ傷害, 25, 43 - 43, Japanese半月板損傷治療の最前線 内側半月板損傷
- 琉球医学会, 2020, 琉球医学会誌, 39(1-4) (1-4), 94 - 94, Japanese健常成人における男性と女性の静止時及び歩行時の足底圧の評価 In shoe systemを用いた解析
- (一社)日本臨床スポーツ医学会, Nov. 2019, 日本臨床スポーツ医学会誌, 27(4) (4), S173 - S173, JapaneseACL再建によってPivot-shiftが消失した膝における過制動の有無の調査
- (一社)日本臨床スポーツ医学会, Nov. 2019, 日本臨床スポーツ医学会誌, 27(4) (4), S249 - S249, Japaneseスポーツ選手における半月板単独損傷に対する半月板縫合術の治療成績
- (一社)日本臨床スポーツ医学会, Nov. 2019, 日本臨床スポーツ医学会誌, 27(4) (4), S250 - S250, Japanese膝前十字靱帯解剖学的二重束再建術における骨孔重複が主観的膝機能に及ぼす影響の調査
- (一社)日本関節病学会, Oct. 2019, 日本関節病学会誌, 38(3) (3), 225 - 225, Japanese変形性膝関節症に対する骨切り術の最先端 骨軟骨柱移植を併用した高位脛骨骨切り術
- (公社)日本整形外科学会, Sep. 2019, 日本整形外科学会雑誌, 93(8) (8), S1920 - S1920, Japanese半月板横断裂に対するcross tie grip sutureと従来縫合法の力学試験による比較Summary national conference
- 05 Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 424, Japanese半月板切除術
- (一社)日本整形外科スポーツ医学会, Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 422 - 422, Japaneseスポーツ選手の足関節外側靭帯に対する低侵襲手術
- (一社)日本整形外科スポーツ医学会, Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 558 - 558, JapaneseACL損傷に対する治療アートをエビデンスにする
- (一社)日本整形外科スポーツ医学会, Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 391 - 391, Japanese10代患者における解剖学的二重束前十字靭帯再建術の術後成績
- (一社)日本整形外科スポーツ医学会, Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 391 - 391, Japanese10代患者における解剖学的二重束前十字靱帯再建術の術後成績
- (一社)日本整形外科スポーツ医学会, Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 422 - 422, Japanese足関節外側靱帯損傷に対する治療 スポーツ選手には手術が必要か? スポーツ選手の足関節外側靱帯に対する低侵襲手術
- (一社)日本整形外科スポーツ医学会, Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 424 - 424, Japanese半月板手術 スポーツ選手適応 温存手術か保存手術か? 半月板切除術
- (一社)日本整形外科スポーツ医学会, Aug. 2019, 日本整形外科スポーツ医学会雑誌, 39(4) (4), 558 - 558, JapaneseACL損傷に対する治療〜エビデンスとアート ACL損傷に対する治療 アートをエビデンスにする
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 10 May 2019, JOSKAS, 44(4) (4), 378 - 378, Japanese軟骨再生の基礎,臨床研究
- 10 May 2019, JOSKAS, 44(4) (4), 412, Japanese3D医用画像技術を用いた若年成人における健常な前十字靭帯脛骨付着部形態の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, May 2019, JOSKAS, 44(4) (4), 378 - 378, Japanese膝関節疾患における再生医療の最前線 軟骨再生の基礎、臨床研究
- (一社)日本関節鏡・膝・スポーツ整形外科学会, May 2019, JOSKAS, 44(4) (4), 412 - 412, Japanese3D医用画像技術を用いた若年成人における健常な前十字靱帯脛骨付着部形態の検討
- (公社)日本整形外科学会, 05 Mar. 2019, 日本整形外科学会雑誌, 93(2) (2), S84 - S84, Japanese若年者における前十字靱帯脛骨付着部の形態に関する検討:高解像度MRIを用いた生体内分析
- (公社)日本整形外科学会, Mar. 2019, 日本整形外科学会雑誌, 93(2) (2), S84 - S84, Japanese若年者における前十字靱帯脛骨付着部の形態に関する検討 高解像度MRIを用いた生体内分析
- 09 May 2018, JOSKAS, 43(4) (4), 678, Japanese前十字靭帯再建術後早期の靱帯治癒にgraft bending angleは影響するか?
- (一社)日本関節鏡・膝・スポーツ整形外科学会, May 2018, JOSKAS, 43(4) (4), 678 - 678, Japanese前十字靱帯再建術後早期の靱帯治癒にgraft bending angleは影響するか?
- (公社)日本整形外科学会, 14 Mar. 2018, 日本整形外科学会雑誌, 92(3) (3), S1170 - S1170, Japanese前十字靱帯再建術後早期の靱帯治癒にgraft bending angleは影響を及ぼすか
- (公社)日本整形外科学会, Mar. 2018, 日本整形外科学会雑誌, 92(3) (3), S1170 - S1170, Japanese
- (公社)日本整形外科学会, 31 Aug. 2017, 日本整形外科学会雑誌, 91(8) (8), S1694 - S1694, Japanese異なる大腿骨側骨孔位置を用いた膝前外側構成体補強術の膝制動性の検討―三次元電磁気センサーによる定量評価―
- (公社)日本整形外科学会, Aug. 2017, 日本整形外科学会雑誌, 91(8) (8), S1694 - S1694, Japanese異なる大腿骨側骨孔位置を用いた膝前外側構成体補強術の膝制動性の検討 三次元電磁気センサーによる定量評価
- (公社)日本整形外科学会, 21 Mar. 2017, 日本整形外科学会雑誌, 91(3) (3), S762 - S762, Japanese膝関節前外側支持機構の生体力学的解析
- (公社)日本整形外科学会, Mar. 2017, 日本整形外科学会雑誌, 91(3) (3), S762 - S762, Japanese膝関節前外側支持機構の生体力学的解析
- (一社)日本臨床スポーツ医学会, 01 Oct. 2016, 日本臨床スポーツ医学会誌, 24(4) (4), S197 - S197, Japanese異なる大腿骨孔位置を用いた膝前外側靭帯再建術の回旋制動性の検討―三次元電磁気センサーを用いて
- (一社)日本臨床スポーツ医学会, Oct. 2016, 日本臨床スポーツ医学会誌, 24(4) (4), S197 - S197, Japanese
- (公社)日本整形外科学会, 31 Aug. 2016, 日本整形外科学会雑誌, 90(8) (8), S1786 - S1786, Japanese前十字靱帯損傷後の遺残組織の形態の差異が治癒特性に与える影響
- (公社)日本整形外科学会, 31 Aug. 2016, 日本整形外科学会雑誌, 90(8) (8), S1468 - S1468, Japaneseマウス変形性関節症モデルに対するシンバスタチン含有ゼラチンハイドロゲル関節内投与による関節症進行抑制効果
- (公社)日本整形外科学会, Aug. 2016, 日本整形外科学会雑誌, 90(8) (8), S1468 - S1468, Japaneseマウス変形性関節症モデルに対するシンバスタチン含有ゼラチンハイドロゲル関節内投与による関節症進行抑制効果
- (公社)日本整形外科学会, Aug. 2016, 日本整形外科学会雑誌, 90(8) (8), S1786 - S1786, Japanese前十字靱帯損傷後の遺残組織の形態の差異が治癒特性に与える影響
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jul. 2016, JOSKAS, 41(4) (4), 367 - 367, Japanese臨床使用可能な3機器を用いたPivot shift定量的評価方法の有用性についての比較調査
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jul. 2016, JOSKAS, 41(4) (4), 368 - 368, Japanese主観的膝機能を反映する定量的pivot‐shift test評価項目の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2016, JOSKAS, 41(4) (4), 367 - 367, Japanese臨床使用可能な3機器を用いたPivot shift定量的評価方法の有用性についての比較調査
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2016, JOSKAS, 41(4) (4), 368 - 368, Japanese主観的膝機能を反映する定量的pivot-shift test評価項目の検討
- Apr. 2016, OSTEOARTHRITIS AND CARTILAGE, 24, S359 - S360, EnglishINTRAPERITONEAL INJECTION OF THE SIRT1 ACTIVATOR SRT1720 ATTENUATES THE PROGRESSION OF EXPERIMENTAL OSTEOARTHRITIS IN MICESummary international conference
- (公社)日本整形外科学会, 31 Mar. 2016, 日本整形外科学会雑誌, 90(3) (3), S480 - S480, Japanese膝前十字靱帯不全膝・再建膝の評価―三次元電磁気センサーを用いた評価―
- (公社)日本整形外科学会, 31 Mar. 2016, 日本整形外科学会雑誌, 90(3) (3), S580 - S580, Japanese膝前十靱帯前内側束・後外側束が膝関節安定性へ及ぼす役割―三次元電磁気センサーを用いた定量的評価―
- (公社)日本整形外科学会, 04 Mar. 2016, 日本整形外科学会雑誌, 90(2) (2), S316 - S316, Japanese陳旧性複合靱帯損傷に対する治療
- (公社)日本整形外科学会, Mar. 2016, 日本整形外科学会雑誌, 90(2) (2), S316 - S316, Japanese複合靱帯損傷に対する治療 陳旧性複合靱帯損傷に対する治療
- (公社)日本整形外科学会, Mar. 2016, 日本整形外科学会雑誌, 90(3) (3), S480 - S480, JapaneseACL不全膝・再建膝の評価 膝前十字靱帯不全膝・再建膝の評価 三次元電磁気センサーを用いた評価
- (公社)日本整形外科学会, Mar. 2016, 日本整形外科学会雑誌, 90(3) (3), S580 - S580, Japanese膝前十靱帯前内側束・後外側束が膝関節安定性へ及ぼす役割 三次元電磁気センサーを用いた定量的評価
- Feb. 2016, 日本軟骨代謝学会プログラム・抄録集, 29th, 68, Japanese骨膜パッチを用いない自家培養軟骨細胞移植―医師主導治験
- Feb. 2016, 日本軟骨代謝学会プログラム・抄録集, 29th, 101, Japaneseマウス変形性関節症モデルに対するSRT1720腹腔内投与による関節症進行抑制効果
- 2016, 日本人工関節学会プログラム・抄録集, 46th, 357, Japanese内反型変形性膝関節症に対する人工膝関節全置換術術後下肢アライメントと臨床成績の関係
- 2016, 日本人工関節学会プログラム・抄録集, 46th, 397, JapaneseCR型人工膝関節全置換術における術中外側laxityは術後膝屈曲角度に影響を及ぼす因子である
- 2016, 日本人工関節学会プログラム・抄録集, 46th, 505, JapanesePS型TKAにおける術中軟部組織バランスが術後膝安定性・可動域に及ほす影響
- 01 Dec. 2015, 日本人工関節学会誌, 45, 353‐354, JapanesePS型人工膝関節全置換術の術後膝安定性の検討(modified gap法とmeasured resection法の比較)
- PS型人工膝関節全置換術の術後膝安定性の検討 modified gap法とmeasured resection法の比較PS型人工膝関節全置換術(TKA)における術後の膝安定性を評価するため、modified gap法に準じた新たな術式である、medial gap法(MGT)とmeasured resection法(MRT)について比較検討した。対象は内反型変形性膝関節症に対してMGTまたはMRTによる初回TKAを受けた60膝(MGT群30膝、MRT群30膝)で、術後1、6および12ヵ月の膝安定性を伸展位と屈曲位で比較した。伸展位の安定性はTelos SEを用いた10kg負荷の内外反ストレス撮影で、屈曲位のそれは1.5kg重錘負荷の上顆軸撮影で定量的に評価した。その結果、伸展位gap作成の骨切り量(大腿骨遠位と脛骨近位)は両群間で有意な差が見られなかったが、大腿骨後顆骨切り量はMGT群が有意に低かった。また、伸展位と屈曲位での内外の関節裂隙幅はいずれもMGT群が有意に低かった。これらの結果から、MGTはMRTに比べてPS-TKAの術後膝安定性が高いと思われた。(一社)日本人工関節学会, Dec. 2015, 日本人工関節学会誌, 45, 353 - 354, Japanese
- 31 Oct. 2015, 日本関節病学会誌, 34(3) (3), 313, Japanese変形性関節症におけるエピジェネティクスとエピジェネティクス関連因子
- (一社)日本関節病学会, Oct. 2015, 日本関節病学会誌, 34(3) (3), 313 - 313, Japanese変形性膝関節症治療のガイドラインと新戦略 変形性関節症におけるエピジェネティクスとエピジェネティクス関連因子
- (公社)日本整形外科学会, 10 Sep. 2015, 日本整形外科学会雑誌, 89(8) (8), S1435 - S1435, Japanese膝前十字靱帯損傷膝の遺残組織の治癒能―受傷時期が及ぼす影響―
- 01 Sep. 2015, 中部日本整形外科災害外科学会雑誌, 58, 167, Japanese外傷後の広範囲大腿骨内顆骨壊死に対して骨移植と骨軟骨柱移植術を併用して高位脛骨骨切り術を行った一例
- 01 Sep. 2015, 中部日本整形外科災害外科学会雑誌, 58, 170, Japanese単純X線膝側面像を用いた膝蓋骨不安定症のスクリーニング法の開発
- (一社)中部日本整形外科災害外科学会, Sep. 2015, 中部日本整形外科災害外科学会雑誌, 58(秋季学会) (秋季学会), 167 - 167, Japanese外傷後の広範囲大腿骨内顆骨壊死に対して骨移植と骨軟骨柱移植術を併用して高位脛骨骨切り術を行った一例
- (一社)中部日本整形外科災害外科学会, Sep. 2015, 中部日本整形外科災害外科学会雑誌, 58(秋季学会) (秋季学会), 170 - 170, Japanese単純X線膝側面像を用いた膝蓋骨不安定症のスクリーニング法の開発
- (公社)日本整形外科学会, Sep. 2015, 日本整形外科学会雑誌, 89(8) (8), S1435 - S1435, Japanese膝前十字靱帯損傷膝の遺残組織の治癒能 受傷時期が及ぼす影響
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2015, JOSKAS, 40(4) (4), 129 - 129, Japanese高度脱臼素因例への対応
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2015, JOSKAS, 40(4) (4), 353 - 353, Japanese膝前十靭帯前内側束・後外側束が膝関節安定性へ及ぼす役割~三次元電磁気センサーを用いた定量的評価~
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2015, JOSKAS, 40(4) (4), 157 - 157, Japanese単純X線膝側面像による膝蓋骨不安定症のスクリーニング~CT画像との比較~
- 01 Jun. 2015, 骨折, 37(Supplement) (Supplement), S108, JapaneseC2C3型橈骨遠位端関節内骨折に対するStellar2プレートの治療成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2015, JOSKAS, 40(4) (4), 323 - 323, Japanese膝前十字靭帯(ACL)再建膝評価―スポーツ復帰に向けた取り組み
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2015, JOSKAS, 40(4) (4), 354 - 354, Japanese前十字靱帯再建術における前方制動性と関節内靱帯張力を適正化する為の初期固定張力の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2015, JOSKAS, 40(4) (4), 580 - 580, Japanese単顆型人工膝関節置換術における脛骨後方傾斜の変化が及ぼす影響
- (一社)日本骨折治療学会, Jun. 2015, 骨折, 37(Suppl.) (Suppl.), S108 - S108, JapaneseC2C3型橈骨遠位端関節内骨折に対するStellar2プレートの治療成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2015, JOSKAS, 40(4) (4), 129 - 129, Japanese膝蓋骨不安定症の病態と治療 高度脱臼素因例への対応
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2015, JOSKAS, 40(4) (4), 157 - 157, Japanese単純X線膝側面像による膝蓋骨不安定症のスクリーニング CT画像との比較
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2015, JOSKAS, 40(4) (4), 323 - 323, Japanese膝前十字靱帯損傷への取り組み 膝前十字靱帯(ACL)再建膝評価 スポーツ復帰に向けた取り組み
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2015, JOSKAS, 40(4) (4), 353 - 353, Japanese膝前十靱帯前内側束・後外側束が膝関節安定性へ及ぼす役割 三次元電磁気センサーを用いた定量的評価
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2015, JOSKAS, 40(4) (4), 354 - 354, Japanese前十字靱帯再建術における前方制動性と関節内靱帯張力を適正する為の初期固定張力の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2015, JOSKAS, 40(4) (4), 580 - 580, Japanese単顆型人工膝関節置換術における脛骨後方傾斜の変化が及ぼす影響
- 12 Mar. 2015, 日本整形外科学会雑誌, 89(3) (3), S903, JapaneseModified gap法に準じた新たな手術手技(medial gap technique)を用いた人工膝関節全置換術での術中軟部組織バランス評価(CRとPS TKAの比較)
- (公社)日本整形外科学会, 12 Mar. 2015, 日本整形外科学会雑誌, 89(3) (3), S745 - S745, Japanese内側膝蓋大腿靱帯再建術においてX線透視下に決定した大腿骨骨孔位置で再建靱帯は適切な長さ変化を示すか
- (公社)日本整形外科学会, Mar. 2015, 日本整形外科学会雑誌, 89(3) (3), S745 - S745, Japanese内側膝蓋大腿靱帯再建術においてX線透視下に決定した大腿骨骨孔位置で再建靱帯は適切な長さ変化を示すか
- (公社)日本整形外科学会, Mar. 2015, 日本整形外科学会雑誌, 89(3) (3), S903 - S903, JapaneseModified gap法に準じた新たな手術手技(medial gap technique)を用いた人工膝関節全置換術での術中軟部組織バランス評価 CRとPS TKAの比較
- Feb. 2015, 日本軟骨代謝学会プログラム・抄録集, 28th, 114, Japaneseシンバスタチンは半月板修復を促進する
- 01 Feb. 2015, 再生医療, 14, 223, Japaneseシンバスタチンの半月板損傷に対する有効性の検討
- 2015, 日本人工関節学会プログラム・抄録集, 45th, 378, JapanesePS型人工膝関節全置換術の術後膝安定性の検討(Modified gap法とmeasured resection法の比較)
- 2015, DDS再生医療研究会プログラム・抄録集(Web), 5th, ROMBUNNO.7 (WEB ONLY), Japaneseシンバスタチン含有ゼラチンハイドロゲルによる膝半月板修復の可能性
- 01 Oct. 2014, 日本臨床スポーツ医学会誌, 22(4) (4), S213, Japanese前十字靭帯再建術時に施行した半月板縫合術の術後再鏡視評価と治療成績に及ぼす因子の検討
- (一社)日本臨床スポーツ医学会, Oct. 2014, 日本臨床スポーツ医学会誌, 22(4) (4), S213 - S213, Japanese
- (一社)日本整形外科スポーツ医学会, 31 Aug. 2014, 日本整形外科スポーツ医学会雑誌, 34(4) (4), 491 - 491, Japanese全日本女子バレーボール選手に生じた足関節内果疲労骨折の治療経験
- 31 Aug. 2014, 日本整形外科スポーツ医学会雑誌, 34(4) (4), 449, JapaneseACL再断裂例への対応
- 29 Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1658, Japaneseシンバスタチンのヒト半月板に対する有効性の検討
- 29 Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1429, Japanese膝前十字靱帯再建術後の治癒能力の年齢による差異に関する検討
- 29 Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1611, Japanese膝前十字靱帯再建術における移植腱初期固定張力の関節内への伝達率の検討
- (公社)日本整形外科学会, 29 Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1607 - S1607, Japanese前十字靱帯損傷膝の定量評価
- (一社)日本整形外科スポーツ医学会, Aug. 2014, 日本整形外科スポーツ医学会雑誌, 34(4) (4), 449 - 449, JapaneseACL再断裂例への対応 再手術率、術式、成績 ACL再断裂例への対応
- (一社)日本整形外科スポーツ医学会, Aug. 2014, 日本整形外科スポーツ医学会雑誌, 34(4) (4), 491 - 491, Japanese全日本女子バレーボール選手に生じた足関節内果疲労骨折の治療経験
- (公社)日本整形外科学会, Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1429 - S1429, Japanese膝前十字靱帯再建術後の治癒能力の年齢による差異に関する検討
- (公社)日本整形外科学会, Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1607 - S1607, Japaneseバイオメカニクスと手術・リハビリテーションへの応用 前十字靱帯損傷膝の定量評価
- (公社)日本整形外科学会, Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1611 - S1611, Japanese膝前十字靱帯再建術における移植腱初期固定張力の関節内への伝達率の検討
- (公社)日本整形外科学会, Aug. 2014, 日本整形外科学会雑誌, 88(8) (8), S1658 - S1658, Japaneseシンバスタチンのヒト半月板に対する有効性の検討
- 01 Jul. 2014, JOSKAS, 39(4) (4), 398, Japanese外反型変形性膝関節症に対するLPS‐Flexを用いた人工膝関節全置換術の術後短期臨床成績
- 01 Jul. 2014, JOSKAS, 39(4) (4), 137, JapaneseTibial tuberosity‐trochlear groove distance高値患者における内側膝蓋大腿靭帯再建術術後成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jul. 2014, JOSKAS, 39(4) (4), 371 - 371, Japanese膝前十字靱帯再建術における初期固定張力の関節内への伝達率の検討
- 01 Jul. 2014, JOSKAS, 39(4) (4), 157, Japanese単顆型人工膝関節置換術における術中gap計測はインサートサイズ選択の指標となる
- 01 Jul. 2014, JOSKAS, 39(4) (4), 131, JapaneseCR‐TKAにおける内側解離と脛骨内旋運動量の関係
- 01 Jul. 2014, JOSKAS, 39(4) (4), 353, Japaneseシンバスタチンのヒト半月板に対する有効性の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2014, JOSKAS, 39(4) (4), 131 - 131, JapaneseCR-TKAにおける内側解離と脛骨内旋運動量の関係
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2014, JOSKAS, 39(4) (4), 137 - 137, JapaneseTibial tuberosity-trochlear groove distance高値患者における内側膝蓋大腿靱帯再建術術後成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2014, JOSKAS, 39(4) (4), 157 - 157, Japanese単顆型人工膝関節置換術における術中gap計測はインサートサイズ選択の指標となる
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2014, JOSKAS, 39(4) (4), 353 - 353, Japaneseシンバスタチンのヒト半月板に対する有効性の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2014, JOSKAS, 39(4) (4), 369 - 369, Japanese解剖学的前十字靱帯再建術の大腿骨骨孔周辺にかかる圧分布の評価
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2014, JOSKAS, 39(4) (4), 371 - 371, Japanese膝前十字靱帯再建術における初期固定張力の関節内への伝達率の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jul. 2014, JOSKAS, 39(4) (4), 398 - 398, Japanese外反型変形性膝関節症に対するLPS-Flexを用いた人工膝関節全置換術の術後短期臨床成績
- 25 Apr. 2014, JOSKAS, 39(2) (2), 416 - 417, Japaneseアスリートにおける二次性変形性膝関節症の治療
- Apr. 2014, OSTEOARTHRITIS AND CARTILAGE, 22, S314 - S314, EnglishPOSITIVE EFFECTS OF SIMVASTATIN ON HUMAN MENISCAL CELLS AND MENISCAL HEALINGSummary international conference
- アスリートにおける二次性変形性膝関節症の治療アスリートにおける二次性変形性膝関節症(OA)の治療について検討した。膝関節靱帯損傷・半月板損傷や、その治療後に生じた二次性OAの症例でスポーツ継続を希望し、観血的手術を施行した6例7膝を対象とした。術後は4例が術前のスポーツレベルに復帰し、復帰までの期間は術後平均17.0±8.9ヵ月であった。復帰した4例中1例は元のレベルに復帰したが、その後5ヵ月で引退した。1例は手術を機に引退し、Tegner activity scaleは術後平均8.3であったが、最終調査時平均7.0となった。Lysholmスコアは術前平均78.2±6.4点、最終調査時92.8±2.9点と全例で改善を認めた。(一社)日本関節鏡・膝・スポーツ整形外科学会, Apr. 2014, JOSKAS, 39(2) (2), 416 - 417, Japanese
- (公社)日本整形外科学会, 12 Mar. 2014, 日本整形外科学会雑誌, 88(3) (3), S1006 - S1006, Japanese三次元電磁気センサーを用いた前十字靱帯損傷膝における遺残組織の関節制動性評価
- (公社)日本整形外科学会, 12 Mar. 2014, 日本整形外科学会雑誌, 88(3) (3), S505 - S505, Japanese靱帯バランス:rectangular equal balanceを目指すべきか―定量的評価よりの提言―
- 05 Mar. 2014, 日本整形外科学会雑誌, 88(2) (2), S343, Japanese内側膝蓋大腿靱帯再建術術後成績評価と成績に及ぼす因子の検討
- (公社)日本整形外科学会, Mar. 2014, 日本整形外科学会雑誌, 88(2) (2), S343 - S343, Japanese膝蓋骨不安定症の病態と治療 内側膝蓋大腿靱帯再建術術後成績評価と成績に及ぼす因子の検討
- (公社)日本整形外科学会, Mar. 2014, 日本整形外科学会雑誌, 88(3) (3), S505 - S505, Japanese靱帯バランス rectangular equal balanceを目指すべきか 定量的評価よりの提言
- (公社)日本整形外科学会, Mar. 2014, 日本整形外科学会雑誌, 88(3) (3), S1006 - S1006, Japanese三次元電磁気センサーを用いた前十字靱帯損傷膝における遺残組織の関節制動性評価
- 文光堂, 01 Feb. 2014, 臨床スポーツ医学, 31(2) (2), 110 - 114, Japanese競技復帰を目指した膝関節の術後トレーニング ACL再建術の再建材料の差による術後療法の違い
- (株)文光堂, Feb. 2014, 臨床スポーツ医学, 31(2) (2), 110 - 114, Japanese【競技復帰を目指した膝関節の術後トレーニング】ACL再建術の再建材料の差による術後療法の違い
- 2014, 日本人工関節学会プログラム・抄録集, 44th, 399, Japanese人工膝関節全置換術における2011Knee Society Scoreを用いた患者立脚型評価
- 2014, 日本人工関節学会プログラム・抄録集, 44th, 529, Japanese第2世代拘束型人工関節を用いた人工膝関節再置換術の術後成績
- 2014, 日本軟骨代謝学会プログラム・抄録集, 27th, 136, Japaneseヒト軟骨細胞においてSIRT6抑制は細胞老化,DNA損傷,テロメア機能不全をきたす
- 2014, 日本人工関節学会プログラム・抄録集, 44th, 568, JapaneseCR‐TKAにおける術中軟部組織バランスが術後1年以上経過の術後成績に及ぼす影響―術後膝屈曲角度を中心に―
- 2014, 日本人工関節学会プログラム・抄録集, 44th, 466, Japanese人工膝関節全置換術における膝蓋大腿関節接触圧の検討―Fixed型とMobile型インサートの比較―
- 01 Oct. 2013, 日本臨床スポーツ医学会誌, 21(4) (4), S242, Japanese競技レベルの高いスポーツ選手の膝半月板単独損傷に対する半月板縫合術の治療成績
- (一社)日本臨床スポーツ医学会, 01 Oct. 2013, 日本臨床スポーツ医学会誌, 21(4) (4), S244 - S244, Japanese内側膝蓋大腿靱帯再建術後の膝伸展筋力の回復経過
- (一社)日本臨床スポーツ医学会, Oct. 2013, 日本臨床スポーツ医学会誌, 21(4) (4), S242 - S242, Japanese競技レベルの高いスポーツ選手の膝半月板単独損傷に対する半月板縫合術の治療成績
- (一社)日本臨床スポーツ医学会, Oct. 2013, 日本臨床スポーツ医学会誌, 21(4) (4), S244 - S244, Japanese
- 30 Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1605, Japaneseマウス変形性関節症モデルにおける徐放化rapamycin投与の関節症進行抑制効果
- (公社)日本整形外科学会, 30 Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1508 - S1508, Japanese膝前十字靱帯由来細胞の細胞特性における年齢による差異の検討
- 30 Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1520, Japanese長寿因子SIRT1による軟骨変性と変形性関節症における役割
- 30 Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1359, Japaneseヒト軟骨細胞における長寿遺伝子SIRT6による役割の検討
- (公社)日本整形外科学会, Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1359 - S1359, Japaneseヒト軟骨細胞における長寿遺伝子SIRT6による役割の検討
- (公社)日本整形外科学会, Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1508 - S1508, Japanese膝前十字靱帯由来細胞の細胞特性における年齢による差異の検討
- (公社)日本整形外科学会, Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1520 - S1520, Japanese軟骨変性の病態 長寿因子SIRT1による軟骨変性と変形性関節症における役割
- (公社)日本整形外科学会, Aug. 2013, 日本整形外科学会雑誌, 87(8) (8), S1605 - S1605, Japaneseマウス変形性関節症モデルにおける徐放化rapamycin投与の関節症進行抑制効果
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2013, JOSKAS, 38(4) (4), 175 - 175, Japanese前十字靭帯再建術後における膝最大伸展位での脛骨前方偏位の検討
- 01 Jun. 2013, JOSKAS, 38(4) (4), 249, Japanese当科における前十字靭帯再建術時に半月板縫合術を行った症例の治療成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, 01 Jun. 2013, JOSKAS, 38(4) (4), 348 - 348, Japaneseアスリートにおける二次性変形性膝関節症の治療
- 01 Jun. 2013, JOSKAS, 38(4) (4), 298, Japanese人工膝単顆置換術の術中Tensor計測において各関節引き離し力が術後屈曲角度に及ぼす影響
- 01 Jun. 2013, JOSKAS, 38(4) (4), 251, Japanese当科での膝半月板単独損傷に対する半月縫合術の治療成績
- 01 Jun. 2013, JOSKAS, 38(4) (4), 117, Japanese半月板縫合術の治療成績
- 01 Jun. 2013, JOSKAS, 38(4) (4), 551, Japanese反復性膝蓋骨脱臼患者に対するMPFL再建術時の大腿骨再建位置シミュレーション
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2013, JOSKAS, 38(4) (4), 117 - 117, Japanese半月板損傷に対する治療法の現状と展望 半月板縫合術の治療成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2013, JOSKAS, 38(4) (4), 175 - 175, Japanese前十字靱帯再建術前後における膝最大伸展位での脛骨前方偏位の検討
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2013, JOSKAS, 38(4) (4), 249 - 249, Japanese当科における前十字靱帯再建術時に半月板縫合術を行った症例の治療成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2013, JOSKAS, 38(4) (4), 251 - 251, Japanese当科での膝半月板単独損傷に対する半月板縫合術の治療成績
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2013, JOSKAS, 38(4) (4), 298 - 298, Japanese人工膝単顆置換術の術中tensor計測において各関節引き離し力が術後屈曲角度に及ぼす影響
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2013, JOSKAS, 38(4) (4), 348 - 348, Japaneseアスリートにおける二次性変形性膝関節症の治療
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2013, JOSKAS, 38(4) (4), 551 - 551, Japanese反復性膝蓋骨脱臼患者に対するMPFL再建術時の大腿骨再建位置シミュレーション
- Apr. 2013, OSTEOARTHRITIS AND CARTILAGE, 21, S111 - S111, EnglishINTRA-ARTICULAR ADMINISTRATION OF GELATIN HYDROGELS INCORPORATING RAPAMYCIN-MICELLE REDUCES DEVELOPMENT OF EXPERIMENTAL OSTEOARTHRITIS IN A MURINE MODELSummary international conference
- 12 Mar. 2013, 日本整形外科学会雑誌, 87(3) (3), S956, Japanese前十字靱帯損傷による膝の不安定性と再建術後の不安定性の残存に関与する潜在的不安定性の定量的評価
- 12 Mar. 2013, 日本整形外科学会雑誌, 87(3) (3), S531, Japanese未来への扉―膝―前十字靱帯部分損傷に対する術前,術後評価,補強術
- 12 Mar. 2013, 日本整形外科学会雑誌, 87(3) (3), S885, JapaneseTibial tuberosity‐trochlear groove distanceのMPFL再建術術後成績へ及ぼす影響
- (公社)日本整形外科学会, 05 Mar. 2013, 日本整形外科学会雑誌, 87(2) (2), S488 - S488, JapaneseCR型およびPS型人工膝関節全置換術における軟部組織バランス―Measured resection techniqueとgap techniqueの比較―
- 05 Mar. 2013, 日本整形外科学会雑誌, 87(2) (2), S467, Japanese前十字靱帯部分損傷に対する後外側線維束補強術の術後臨床成績
- 関西関節鏡・膝研究会, Mar. 2013, 関西関節鏡・膝研究会プログラム・演題抄録, 25回, 26 - 26, Japanese前十字靱帯再建術前後における膝最大伸展位での脛骨前方偏位の検討
- 関西関節鏡・膝研究会, Mar. 2013, 関西関節鏡・膝研究会プログラム・演題抄録, 25回, 40 - 40, Japanese正常ACL機能再現に向けての我々の再建術式 当科における解剖学的二重束ACL再建術及びACL補強術
- (公社)日本整形外科学会, Mar. 2013, 日本整形外科学会雑誌, 87(2) (2), S467 - S467, Japanese前十字靱帯部分損傷に対する後外側線維束補強術の術後臨床成績
- (公社)日本整形外科学会, Mar. 2013, 日本整形外科学会雑誌, 87(2) (2), S488 - S488, JapaneseCR型およびPS型人工膝関節全置換術における軟部組織バランス Measured resection techniqueとgap techniqueの比較
- (公社)日本整形外科学会, Mar. 2013, 日本整形外科学会雑誌, 87(3) (3), S531 - S531, Japanese未来への扉 膝 前十字靱帯部分損傷に対する術前、術後評価、補強術
- (公社)日本整形外科学会, Mar. 2013, 日本整形外科学会雑誌, 87(3) (3), S885 - S885, JapaneseTibial tuberosity-trochlear groove distanceのMPFL再建術術後成績へ及ぼす影響
- (公社)日本整形外科学会, Mar. 2013, 日本整形外科学会雑誌, 87(3) (3), S956 - S956, Japanese前十字靱帯損傷による膝の不安定性と再建術後の不安定性の残存に関与する潜在的不安定性の定量的評価
- 2013, 日本人工関節学会プログラム・抄録集, 43rd, 273, Japanese外反型変形性膝関節症における術中軟部組織バランスの評価
- 2013, 日本人工関節学会プログラム・抄録集, 43rd, 306, JapaneseCR型およびPS型人工膝関節全置換術における手技による軟部組織バランスの相違
- 2013, 日本人工関節学会プログラム・抄録集, 43rd, 464, Japanese人工膝単顆置換術における術中軟部組織バランスが術後アウトカムに及ぼす影響
- 25 Dec. 2012, 骨折, 34(4) (4), 888 - 891, Japaneseインプラント周囲骨折に対する治療成績
- (一社)日本骨折治療学会, Dec. 2012, 骨折, 34(4) (4), 888 - 891, Japaneseインプラント周囲骨折に対する治療成績
- 近畿小児整形外科懇話会, Dec. 2012, 近畿小児整形外科, 25, 64 - 67, Japanese当院でShilla法を施行し最終固定に至ったLarsen症候群の1例
- 日本脊椎脊髄病学会, 25 Nov. 2012, Journal of Spine Research, 3(11) (11), 1457 - 1460, Japanese第3腰椎を固定下端として後方固定術を施行した胸腰椎/腰椎カーブを有する特発性側弯症における非固定椎体の矯正
- (一社)日本脊椎脊髄病学会, Nov. 2012, Journal of Spine Research, 3(11) (11), 1457 - 1460, Japanese第3腰椎を固定下端として後方固定術を施行した胸腰椎/腰椎カーブを有する特発性側彎症における非固定椎体の矯正
- 24 Oct. 2012, 日本関節病学会誌, 31(3) (3), 349, Japanese長寿因子SIRT1の軟骨細胞における役割
- 01 Oct. 2012, 日本臨床スポーツ医学会誌, 20(4) (4), S209, Japanese前十字靭帯部分損傷に対する後外側線維束補強術の術後臨床成績
- 01 Oct. 2012, 日本臨床スポーツ医学会誌, 20(4) (4), S211, Japanese三次元電磁気センサーを用いた膝前十字靱帯再建術による機能改善の定量的評価
- 01 Oct. 2012, 日本臨床スポーツ医学会誌, 20(4) (4), S211, Japanese前十字靭帯損傷膝における三次元電磁気センサーを用いたPivot shift testの定量的評価
- (一社)日本臨床スポーツ医学会, Oct. 2012, 日本臨床スポーツ医学会誌, 20(4) (4), S209 - S209, Japanese前十字靱帯部分損傷に対する後外側線維束補強術の術後臨床成績
- (一社)日本臨床スポーツ医学会, Oct. 2012, 日本臨床スポーツ医学会誌, 20(4) (4), S211 - S211, Japanese三次元電磁気センサーを用いた膝前十字靱帯再建術による機能改善の定量的評価
- (一社)日本臨床スポーツ医学会, Oct. 2012, 日本臨床スポーツ医学会誌, 20(4) (4), S211 - S211, Japanese前十字靱帯損傷膝における三次元電磁気センサーを用いたPivot shift testの定量的評価
- (一社)日本関節病学会, Oct. 2012, 日本関節病学会誌, 31(3) (3), 349 - 349, Japanese軟骨エイジング そのメカニズムと評価 長寿因子SIRT1の軟骨細胞における役割
- 01 Sep. 2012, 中部日本整形外科災害外科学会雑誌, 55, 74, JapanesePS型TKAにおけるtibial slopeおよびposterior condylar offsetが術中軟部組織バランスに及ぼす影響
- (一社)中部日本整形外科災害外科学会, Sep. 2012, 中部日本整形外科災害外科学会雑誌, 55(秋季学会) (秋季学会), 74 - 74, JapanesePS型TKAにおけるtibial slopeおよびposterior condylar offsetが術中軟部組織バランスに及ぼす影響
- 25 Apr. 2012, JOSKAS, 37(2) (2), 202 - 203, JapanesePS‐TKAにおける術中軟部組織バランスが術後早期の膝自動屈曲角度に及ぼす影響
- PS-TKAにおける術中軟部組織バランスが術後早期の膝自動屈曲角度に及ぼす影響primary TKAを施行した内反型変形性膝関節症45膝(男性6膝、女性39膝、手術時平均年齢73.9歳)を対象に、術中軟部組織バランスや骨切除量が術後早期の膝自動屈曲角度に及ぼす影響について検討した。その結果、術後の自動屈曲角度は術前の自動屈曲角度や大腿骨後顆骨切除量と有意な相関関係が示された。また、より大きな大腿骨コンポーネントを選択し、屈曲ギャップがタイトとなった症例では、術後の自動屈曲角度は改善する傾向がみられた。以上より、骨切除量や術中軟部組織バランスがPS-TKA術後の自動屈曲角度やその改善に影響を及ぼすことが明らかとなった。(一社)日本関節鏡・膝・スポーツ整形外科学会, Apr. 2012, JOSKAS, 37(2) (2), 202 - 203, Japanese
- 25 Feb. 2012, 骨折, 34(1) (1), 131 - 133, Japanese膝蓋骨下極の骨折に対するひまわり法の工夫
- 近畿小児整形外科懇話会, Feb. 2012, 近畿小児整形外科, 24, 79 - 83, Japanese当院で施行したVEPTR(vertical expandable prosthetic titanium rib)の3例
- (一社)日本骨折治療学会, Feb. 2012, 骨折, 34(1) (1), 131 - 133, Japanese膝蓋骨下極の骨折に対するひまわり法の工夫
- 2012, 第2 回 DDS 徐放化再生医療研究会（2012.12.22．京都）, Japaneseマウス変形性関節症モデルに対する徐放化rapamycin 投与による関節症進行抑制効果[Refereed]
- 01 Dec. 2011, 日本人工関節学会誌, 41, 252 - 253, JapanesePS‐TKAにおける術中軟部組織バランスが術後膝屈曲位での安定性に及ぼす影響
- 01 Dec. 2011, 日本人工関節学会誌, 41, 488 - 489, Japanese高齢者に対するセメントレスステム初期固定性の予測因子の検討
- 01 Dec. 2011, 日本人工関節学会誌, 41, 242 - 243, Japanese関節引き離し力がPS‐TKAの術中軟部組織バランス評価に及ぼす影響
- THA Bipolar 高齢者に対するセメントレスステム初期固定性の予測因子の検討骨温存近位固定型セメントレスステムを用いて人工骨頭置換術を行った33例(女性29例、男性4例、平均77.7歳)を対象に、ステムの固定性について検討した。X線像によるsubsidence(大転子頂部からステム近位エッジ部までの骨軸方向の距離の増加量)の平均値は1ヵ月時0.6mm、3ヵ月時1.5mmであり、3mm以上のsubsidenceを3ヵ月時で4例(12%)に認めたが、臨床的に問題はなかった。術後早期の健側大腿骨近位部の骨密度と術後3ヵ月のsubsidenceとの間に負の相関(r=-0.59)を認め、3mm以上のsubsidenceを生じた症例は全例骨粗鬆症を有していた。ステム近位部の髄腔径をステム遠位20%部の髄腔径で除した値(CFI)、ステム遠位20%部での皮質骨率(CI)と術後3ヵ月時のsubsidenceの間に負の相関(CFI:r=-0.42、CI:r=-0.59)が認められたが、髄腔占拠率はsubsidenceと有意な相関は認めなかった。(一社)日本人工関節学会, Dec. 2011, 日本人工関節学会誌, 41, 488 - 489, Japanese
- TKA gap 関節引き離し力がPS-TKAの術中軟部組織バランス評価に及ぼす影響内反型変形性ひざ関節症(OA)に対してprimary人工膝関節全置換術(TKA)を施行した43膝(女性37膝、男性6膝)を対象に、関節引き離し力が術中軟部組織バランス評価に及ぼした影響について検討した。その結果、1)関節引き離し力の増加に伴い、骨切り面間ギャップは増加し、内反角も増加した。これにより内側に比べ外側のギャップがより開大しやすいという特徴が明らかとなった。2)膝関節の内外側軟部組織剛性の相違については外側の剛性は内側の剛性に比べ有意に低かった。3)バランス獲得に有効とされるGap techniqueでは大腿骨コンポネートの回旋設置角度は評価時の力学条件に左右されるため解剖学的指標も参考にし、特に内施位設置とならないように注意する必要が示唆された。(一社)日本人工関節学会, Dec. 2011, 日本人工関節学会誌, 41, 242 - 243, Japanese
- TKA gap PS-TKAにおける術中軟部組織バランスが術後膝屈曲位での安定性に及ぼす影響内反型変形性膝関節症(OA)に対してprimary人工膝関節全置換術(TKA)を施行した25膝(女性23膝、男性2膝、手術時平均年齢74.2歳)を対象に、術中軟部組織バランスが術後早期の膝屈曲位での安定性に及ぼす影響について検討した。上顆軸撮影を行なった結果、膝屈曲位での安定性を評価する指標としてflexion looseness(関節裂隙幅平均)は屈曲位での骨切り面間ギャップ、コンポーネントギャップやギャップバランス(屈曲-伸展ギャップ)と正の相関が認められた。また一方、flexionlateral looseness(内外関節裂隙幅の差)は屈曲位での骨切り面間ギャップとコンポーネントギャップにおいて内半角との正の相関が認められた。(一社)日本人工関節学会, Dec. 2011, 日本人工関節学会誌, 41, 252 - 253, Japanese
- 日本最小侵襲整形外科学会, Nov. 2011, 日本最小侵襲整形外科学会誌, 11(1) (1), 97 - 97, Japanese骨折・外傷に対する最小侵襲手術(下肢) 膝蓋骨骨折に対するMISひまわり法
- 2005年1月から2010年3月までに手術を行った下腿開放骨折49例52肢(平均年齢43.9歳)の治療成績を検討した。受傷転帰は交通事故31例、重量物の下敷き11例、転倒転落7例で、Gustilo分類はtype 3aまでが約80%を占め、骨癒合期間は平均10.4ヵ月であった。緊急手術例38肢の内訳はEarly total care(ETC)29肢、Damage control orthopedic surgery 5肢、下肢切断4肢で、受傷から手術までの時間は平均4.9時間であり、9ヵ月までに約50%で骨癒合が得られた。一方、待機手術例14肢では2肢に偽関節手術が施行され、骨癒合は12ヵ月以内で50%程度であった。また、全体の感染率は6.3%であったが、ETC群では3.4%と低い傾向にあり、一期的内固定による感染率は低く、良好な成績であった。(一社)中部日本整形外科災害外科学会, Sep. 2011, 中部日本整形外科災害外科学会雑誌, 54(5) (5), 923 - 924, Japanese
- (一社)日本骨折治療学会, Jul. 2011, 骨折, 33(Suppl.) (Suppl.), S173 - S173, Japanese大腿骨転子部骨折術後の骨頭回旋安定性の評価(CTと単純X線前後像の比較検討)
- (一社)日本骨折治療学会, Jul. 2011, 骨折, 33(Suppl.) (Suppl.), S235 - S235, Japanese膝蓋骨下極の骨折に対するひまわり法の工夫
- (一社)日本骨折治療学会, Jul. 2011, 骨折, 33(Suppl.) (Suppl.), S259 - S259, Japaneseインプラント周囲骨折に対する治療成績
- 01 Jun. 2011, JOSKAS, 36(4) (4), 247, JapanesePS‐TKAにおける術中軟部組織バランスが術後早期の膝自動屈曲角度に及ぼす影響
- (一社)日本関節鏡・膝・スポーツ整形外科学会, Jun. 2011, JOSKAS, 36(4) (4), 247 - 247, JapanesePS-TKAにおける術中軟部組織バランスが術後早期の膝自動屈曲角度に及ぼす影響
- 25 May 2011, 骨折, 33(2) (2), 421 - 425, Japanese転位型大腿骨頚部骨折に対するハンソンピン手術の治療成績―成績不良因子の検討―
- 25 May 2011, 骨折, 33(2) (2), 510 - 514, Japanese当院における下腿開放骨折の治療―最近5年間の治療成績―
- (一社)日本骨折治療学会, May 2011, 骨折, 33(2) (2), 421 - 425, Japanese転位型大腿骨頸部骨折に対するハンソンピン手術の治療成績 成績不良因子の検討
- (一社)日本骨折治療学会, May 2011, 骨折, 33(2) (2), 510 - 514, Japanese当院における下腿開放骨折の治療 最近5年間の治療成績
- 01 Mar. 2011, 中部日本整形外科災害外科学会雑誌, 54, 123, Japanese当院における脛骨骨幹部開放骨折の治療成績
- (一社)中部日本整形外科災害外科学会, Mar. 2011, 中部日本整形外科災害外科学会雑誌, 54(春季学会) (春季学会), 123 - 123, Japanese当院における脛骨骨幹部開放骨折の治療成績
- 最小侵襲人工骨頭置換術の治療成績 前向き研究による前方および後側方進入法による手術侵襲の比較65歳以上の大腿骨頸部骨折60例60股(男11例・女49例)に対する最小侵襲人工骨頭置換術において、無作為にdirect anterior approach群(D群)30例とposterolateral approach群(P群)30例に分け、randomized prospective studyを行った。手術時年齢、手術待機日数、BMI、術前の血液生化学所見に両群間で有意差は認めなかった。手術時間はD群平均94.0分、P群74.4分とD群で有意に長かったが、出血量、術中麻薬使用量(フェンタニル)、術後血液生化学所見、SLR開始日、術後在院日数に両群間で有意差は認めなかった。人工骨頭置換術では前方進入法も有効な選択肢となると考えられた。(一社)中部日本整形外科災害外科学会, Mar. 2011, 中部日本整形外科災害外科学会雑誌, 54(2) (2), 299 - 300, Japanese
- 25 Feb. 2011, 骨折, 33(1) (1), 119 - 122, Japanese不安定型大腿骨転子部骨折および大腿骨頚基部骨折に対するGamma 3 U‐lag screwの使用経験
- (一社)日本骨折治療学会, Feb. 2011, 骨折, 33(1) (1), 119 - 122, Japanese不安定型大腿骨転子部骨折および大腿骨頸基部骨折に対するGamma 3 U-lag screwの使用経験
- 2011, 骨折, 33(Supplement) (Supplement), S259, Japaneseインプラント周囲骨折に対する治療成績
- 2011, 骨折, 33(Supplement) (Supplement), S235, Japanese膝蓋骨下極の骨折に対するひまわり法の工夫
- 2011, 日本人工関節学会プログラム・抄録集, 41st, 299, JapanesePS‐TKAにおける術中軟部組織バランスが術後膝屈曲位での安定性に及ぼす影響
- 2011, 日本人工関節学会プログラム・抄録集, 41st, 296, Japanese関節引き離し力がPS‐TKAの術中軟部組織バランス評価に及ぼす影響
- 2011, 日本人工関節学会プログラム・抄録集, 41st, 213, Japanese伸展屈曲ギャップ差がPS‐TKAの術後早期成績に及ぼした影響について(Tensorを用いた定量的評価結果より)
- 2011, 日本人工関節学会プログラム・抄録集, 41st, 329, Japanese高齢者に対するセメントレスステム初期固定性の予測因子の検討
- THE CENTRAL JAPAN ASSOCIATION OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY, 2011, 中部日本整形外科災害外科学会雑誌, 54(5) (5), 923-924 (J-STAGE) - 924, Japanese
- 2011, 中部日本整形外科災害外科学会雑誌, 54(2) (2), 299-300 (J-STAGE), Japanese
- 2011, 骨折, 33(Supplement) (Supplement), S173, Japanese大腿骨転子部骨折術後の骨頭回旋安定性の評価(CTと単純X線前後像の比較検討)
- 2011, 日本側彎症学会演題抄録集, 45th, 159, Japanese第3腰椎を固定下端として後方固定術を施行した胸腰椎/腰椎カーブを有する特発性側彎症における非固定椎体の矯正
- 01 Oct. 2010, 整形外科, 61(11) (11), 1181 - 1184, Japanese
- 選択的椎弓切除による洗浄ドレナージが有効であった頸椎から仙椎にいたる広範囲脊椎硬膜外膿瘍の1例77歳女。近医にて頸椎から仙椎にいたる広範囲脊椎硬膜外膿瘍を認めたため、当院へ転院となった。軽度の貧血と炎症反応を認めた。脊椎MRIにて、C2〜S2の硬膜後方にT1強調画像で等信号、T2強調画像で高信号を呈し、周囲のみ造影効果を受ける硬膜外占拠性病変を認め、L5/S1椎間板はT2強調画像で高信号を認めた。以上の所見からC2〜S2にいたる広範囲脊椎硬膜外膿瘍、L5/S1椎間板炎と診断した。進行性の神経学的欠落所見も認めたため、緊急手術を行った。Th2、L1に左片側椎弓切除術を行った。椎弓直下に不良肉芽を認め、これを除去すると硬膜外腔に白色混濁した膿瘍を認めた。膿瘍の吸引・洗浄を行った。L5/S1両側拡大開窓を行ったところ、椎弓後方の筋層にも膿性組織がみられ、汚染が強い状態であったが、L5/S1椎間板周囲には明らかな膿瘍は認めなかった。起炎菌の同定は出来なかったが、四肢筋力も徐々に回復し術後は経過良好であった。(株)南江堂, Oct. 2010, 整形外科, 61(11) (11), 1181 - 1184, Japanese
- 01 Sep. 2010, 中部日本整形外科災害外科学会雑誌, 53, 173, Japanese最少侵襲人工骨頭置換術の治療成績―前向き研究による前方および後側方進入法による手術侵襲の比較―
- (一社)中部日本整形外科災害外科学会, Sep. 2010, 中部日本整形外科災害外科学会雑誌, 53(秋季学会) (秋季学会), 173 - 173, Japanese最少侵襲人工骨頭置換術の治療成績 前向き研究による前方および後側方進入法による手術侵襲の比較
- (一社)日本骨折治療学会, Jul. 2010, 骨折, 32(Suppl.) (Suppl.), S63 - S63, Japanese不安定型大腿骨転子部骨折および大腿骨頸基部骨折に対するGamma 3 U-Lag screwの使用経験
- (一社)日本骨折治療学会, Jul. 2010, 骨折, 32(Suppl.) (Suppl.), S96 - S96, Japanese当院における下腿開放骨折に対する治療 最近5年間の治療成績
- (一社)日本骨折治療学会, Jul. 2010, 骨折, 32(Suppl.) (Suppl.), S115 - S115, Japanese転位型大腿骨頸部骨折に対するハンソンピン手術の治療成績 成績不良因子の検討
- 01 Mar. 2010, 中部日本整形外科災害外科学会雑誌, 53, 97, Japanese転位型大腿骨頸部骨折に対するハンソンピン手術の検討
- (一社)中部日本整形外科災害外科学会, Mar. 2010, 中部日本整形外科災害外科学会雑誌, 53(春季学会) (春季学会), 97 - 97, Japanese転位型大腿骨頸部骨折に対するハンソンピン手術の検討
- 2010, 骨折, 32(Supplement) (Supplement), S96, Japanese当院における下腿開放骨折に対する治療―最近5年間の治療成績―
- 2010, 骨折, 32(Supplement) (Supplement), S63, Japanese不安定型大腿骨転子部骨折および大腿骨頚基部骨折に対するGamma3U‐Lag screwの使用経験
- 2010, 骨折, 32(Supplement) (Supplement), S115, Japanese転位型大腿骨頸部骨折に対するハンソンピン手術の治療成績―成績不良因子の検討―
- 01 Nov. 2009, 中部日本整形外科災害外科学会雑誌, 52(6) (6), 1466 - 1467, Japanese特発性膝関節血症の2症例
- (一社)中部日本整形外科災害外科学会, Nov. 2009, 中部日本整形外科災害外科学会雑誌, 52(6) (6), 1466 - 1467, Japanese特発性膝関節血症の2症例
- 01 Sep. 2009, 中部日本整形外科災害外科学会雑誌, 52, 163, Japanese頚椎から仙椎に至る広範囲硬膜外膿瘍の治療経験
- (一社)中部日本整形外科災害外科学会, Sep. 2009, 中部日本整形外科災害外科学会雑誌, 52(秋季学会) (秋季学会), 163 - 163, Japanese頸椎から仙椎に至る広範囲硬膜外膿瘍の治療経験
■ Research Themes
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Kobe University, 01 Apr. 2025 - 31 Mar. 2030Multicenter Study to Reduce Retears and Improve Athletic Performance after Anterior Cruciate Ligament Reconstruction
- 日本学術振興会, 科学研究費助成事業 若手研究, 若手研究, 神戸大学, Apr. 2022 - Mar. 2024前十字靭帯損傷における徒手検査定量化システムの検証と確立：未固定凍結屍体での研究
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists, Grant-in-Aid for Early-Career Scientists, Kobe University, Apr. 2020 - Mar. 2022Development of the novel quantitative measurment system of the pivot-shift test in ACL-injured knee
- 2020年度 JOSKAS研究助成, 2021 - 2022, Principal investigator有限要素法を用いた内側楔状閉鎖式大腿骨遠位骨切り術における最適なヒンジ位置と手術方法の検討
- 公益財団法人日本スポーツ医学財団 令和元年研究助成, 2020 - 2022, Principal investigator前十字靱帯損傷膝における回旋不安定性の新たな定量的評価システムの開発と応用
- 令和2年度 JA共済 交通事故医療研究助成, Apr. 2020 - Mar. 2021, Principal investigator外傷性膝関節靱帯損傷に対する靱帯再建術における心理的側面の評価と関連因子の探究