Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology最新文献

{"title":"Annual trends in arthroscopic meniscal surgery in Japan: 10-year analysis from 2014 to 2023","authors":"Hirotaka Nakashima ,&nbsp;Yoichi Murata ,&nbsp;Shinichiro Takada ,&nbsp;Hokuto Fukuda ,&nbsp;Haruki Nishimura ,&nbsp;Akinori Sakai ,&nbsp;Soshi Uchida","doi":"10.1016/j.asmart.2025.12.002","DOIUrl":"10.1016/j.asmart.2025.12.002","url":null,"abstract":"<div><h3>Introduction</h3><div>Meniscal surgery is one of the most common procedures in orthopedic surgery. Although several studies suggest an increased risk of osteoarthritis following meniscectomy compared to meniscus repair, surgical decision should consider individual patient's factor, such as tear pattern, age and activity level. Recent national trends in arthroscopic meniscal surgery in Japan remain unclear. This study aimed to analyze the number of meniscal surgeries, and the proportion of meniscal repairs performed between 2014 and 2023.</div></div><div><h3>Materials and methods</h3><div>The Excel files ‘Number of calculations by division, sex, and age group'under the ‘operation (code K)’ from 2014 to 2023 were downloaded from the National Databaseof Health Insurance Claims and Specific Health Checkups of Japan (NDB) Open Data. Thearthroscopic data meniscectomy (code K068-2) and arthroscopic meniscus repair (code K069-3) were analyzed according to demographic characteristics (sex, age). The trend in the number of meniscal surgeries from 2014 to 2023 was examined. The number of surgical procedures performed per year and the incidence of both surgical procedures, calculated as the number performed per 100,000 population per year, were evaluated.</div></div><div><h3>Results</h3><div>The total number of arthroscopic meniscus surgeries increased from 35,100 cases in 2014 to 49,165 cases in 2023. The total number of arthroscopic meniscus repairs increased from 6652 cases in 2014 to 26,274 cases in 2023. The incidence per 100,000 person-years of arthroscopic meniscus repair also increased from 5.2 in 2014 to 21.1 in 2023. In contrast, the total number of arthroscopic meniscectomy decreased from 28,448 cases in 2014 to 22,891 cases in 2023. The incidence per 100,000 person-years of arthroscopic meniscectomy also decreased from 22.4 in 2014 to 18.4 in 2023. Ratio of arthroscopic meniscus repair significantly increased from 19.0 % in 2014 to 53.4 % in 2023 (p &lt; 0.001). This trend was consistent in both sexes and across age groups. The rate of meniscus repair increased across all age groups (p &lt; 0.001).</div></div><div><h3>Conclusions</h3><div>From 2014 to 2023 in Japan, the total number of arthroscopic meniscus surgeries increased with a marked rise in the proportion of arthroscopic meniscus repair. This trend was observed across age groups, including in patient over 40.</div></div><div><h3>Level of evidence</h3><div>Level Ⅳ</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"43 ","pages":"Pages 7-12"},"PeriodicalIF":1.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Closed wedge high tibial osteotomy can reduce medial meniscus extrusion in comparison with open wedge high tibial osteotomy","authors":"Akinori Nekomoto ,&nbsp;Goki Kamei ,&nbsp;Masakazu Ishikawa ,&nbsp;Kyohei Nakata ,&nbsp;Shunya Tsuji ,&nbsp;Naofumi Hashiguchi ,&nbsp;Atsuo Nakamae ,&nbsp;Nobuo Adachi","doi":"10.1016/j.asmart.2025.12.001","DOIUrl":"10.1016/j.asmart.2025.12.001","url":null,"abstract":"<div><h3>Purpose</h3><div>Most patients indicated for high tibial osteotomy (HTO) often have medial meniscus extrusion (MME), which is associated with the progression of knee osteoarthritis. However, limited research has discussed the changes in MME before and after HTO. This study aimed to compare preoperative and postoperative MME, assess the amount of change in MME (ΔMME), and identify factors influencing MME and ΔMME in open wedge (OW) and closed wedge (CW) HTO.</div></div><div><h3>Methods</h3><div>This retrospective study analyzed 82 knees that underwent HTO between 2018 and 2022. Among them, 50 knees were treated with OWHTO and 32 knees were treated with CWHTO. Computed tomography was used to evaluate preoperative and postoperative MME. Radiographic parameters included the hip-knee-ankle (HKA) angle, femorotibial angle (FTA), medial proximal tibial angle (MPTA), posterior tibial slope angle (PTSA), joint line convergence angle (JLCA), and joint space height (JSH). Joint laxity was calculated as the difference between supine and standing JLCA. Preoperative MME, postoperative MME and ΔMME were compared between the OWHTO (O group) and CWHTO (C group). ΔMME and its associations with perioperative variables were assessed using univariate and multivariate analyses.</div></div><div><h3>Results</h3><div>The mean postoperative MME (5.71 ± 1.63 mm) was significantly larger than the mean preoperative MME (5.16 ± 1.84 mm) in the O group (P = 0.002), while there was no significant difference between preoperative MME (5.71 ± 2.02 mm) and postoperative MME (5.32 ± 1.86 mm) in the C group (P = 0.239). ΔMME in the C group was significantly smaller than that in the O group (P &lt; 0.001). In the O group,ΔMME negatively correlated with age (R = −0.377, P = 0.007) and positively with joint laxity (R = 0.309, P = 0.029). No factors correlated with ΔMME in the C group.</div></div><div><h3>Conclusion</h3><div>MME increased after OWHTO but was maintained or reduced after CWHTO. From the perspective of MME, CWHTO might be preferable to OWHTO.</div></div><div><h3>Level of evidence</h3><div>III (Retrospective cohort study).</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"43 ","pages":"Pages 1-6"},"PeriodicalIF":1.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146081548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of a patient-specific instrument and conventional high tibial Osteotomy: Accuracy of correction target and prevention of posterior tibial slope change","authors":"Joo Hyung Han ,&nbsp;Min Jung ,&nbsp;Kwangho Chung ,&nbsp;Sungjun Kim ,&nbsp;Min Ho Lee ,&nbsp;Chong-Hyuk Choi ,&nbsp;Sung-Hwan Kim","doi":"10.1016/j.asmart.2025.08.006","DOIUrl":"10.1016/j.asmart.2025.08.006","url":null,"abstract":"<div><h3>Background</h3><div>High tibial osteotomy (HTO) is crucial for managing medial compartmental knee osteoarthritis. Precision in achieving the medial proximal tibial angle (MPTA) correction and maintenance of posterior tibial slope (PTS) is essential for clinical success. This study aims to compare the use of 3D-printed patient-specific instruments (PSI) to conventional HTO to achieve precise MPTA correction and maintenance of PTS, aiming to enhance surgical outcomes in HTO patients.</div></div><div><h3>Methods</h3><div>Among 104 patients who underwent HTO between September 2018 and July 2021, 60 met the inclusion criteria and were categorized into a PSI group (30 cases) and conventional method group (30 cases). Radiological outcomes included estimated and postoperative MPTA values, along with preoperative and postoperative PTS measurements.</div></div><div><h3>Results</h3><div>Within the conventional HTO group, significant differences were noted between the estimated and postoperative MPTA values (94.3° ± 2.4° vs. 93.5° ± 2.5°, <em>P</em> = 0.023), as well as between the preoperative and postoperative PTS values (8.8° ± 3.2° vs. 7.9° ± 3.5°, <em>P</em> = 0.033). Conversely, the PSI group did not exhibit any significant differences in these values.</div></div><div><h3>Conclusion</h3><div>This study indicated that the use of PSI-guided HTO could provide enhanced accuracy in achieving the target MPTA and improve the prevention of PTS changes.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 28-35"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of long-toss throwing on elbow injuries in high school baseball pitchers","authors":"Masataka Minami ,&nbsp;Yoshikazu Kida ,&nbsp;Okihiro Onishi ,&nbsp;Shota Hoshika ,&nbsp;Hiroyuki Sugaya ,&nbsp;Kenji Takahashi ,&nbsp;Michael T. Freehill","doi":"10.1016/j.asmart.2025.09.001","DOIUrl":"10.1016/j.asmart.2025.09.001","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Background&lt;/h3&gt;&lt;div&gt;Long-toss throwing is a common practice in baseball for arm strengthening, arm recovery, and as part of an interval throwing program after elbow surgery. However, the effect of long-toss throwing on the throwing elbow remains controversial, with limited studies. Different long-toss techniques, such as using a crow-hop and varying the throw trajectory, may influence elbow stress and injury risk. This study investigated the association between long-toss distance, technique, and subjective elbow symptoms and clinical findings among high school baseball pitchers.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Objective&lt;/h3&gt;&lt;div&gt;The objective of this study was to determine whether subjective elbow symptoms and clinical findings were associated with long-toss throwing techniques in high school baseball pitchers. We hypothesized that longer distances and specific techniques correlate with a higher incidence of elbow symptoms and clinical findings on physical examination and ultrasound.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Methods&lt;/h3&gt;&lt;div&gt;One hundred eighty-two high school baseball pitchers from 49 schools participated in the study. After excluding two players who did not routinely use long-toss, 180 pitchers (mean age 16.2 ± 0.6 years, mean baseball experience 8.1 ± 1.8 years) completed a thorough history, physical examination, and elbow ultrasound examination. The history collected demographical data, elbow pain within the past year, and long-toss techniques (distance, use of crow-hop, and throw trajectory). Physical examination assessed medial, lateral, and posterior-sided elbow tenderness, moving valgus stress test, and extension stress tests. Ultrasound examination evaluated for abnormalities of the medial epicondyle, ulnar collateral ligament (UCL), and coronoid. Statistical analyses assessed the relationship between long-toss, positive clinical findings, and subjective elbow symptoms.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;The mean long-toss distance was 67.0 m, with 75 m being the most common distance. Among the pitchers, 75 % used a crow-hop, and 58 % used a “not on a line” trajectory. Sixty-six pitchers (37 %) reported elbow pain within the past year. The mean long-toss distance was significantly longer for pitchers using a crow-hop, 68.8 m and a “not on a line” trajectory, 72.8 m compared to those not using these techniques, 61.8 m (&lt;em&gt;p&lt;/em&gt; = 0.006) and 59.1 m (&lt;em&gt;p&lt;/em&gt; &lt; 0.001). Longer distances were associated with positive moving valgus stress tests (&lt;em&gt;p&lt;/em&gt; = 0.041, cut-off = 82.8 m, Odds ratio (OR) = 3.4) and UCL abnormalities on ultrasound (&lt;em&gt;p&lt;/em&gt; = 0.019, cut-off = 65.0 m, OR = 4.6). The use of a crow-hop was significantly associated with elbow pain within the past year (42 % vs. 20 %, adjusted &lt;em&gt;p&lt;/em&gt; = 0.018, adjusted OR = 2.8), and a “not on a line” trajectory was linked to higher UCL abnormalities (14 % vs. 1 %, adjusted &lt;em&gt;p&lt;/em&gt; = 0.039, adjusted OR = 10.7).&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Conclusions&lt;/h3&gt;&lt;div&gt;This study demonstrates a sig","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 90-95"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145464865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative meta-analysis of TightRope vs. hook plate for acromioclavicular joint dislocation","authors":"Manuel Alejandro Villagrán-Luján ,&nbsp;Alejandro Alarcon-Mendoza ,&nbsp;Edgar Azael Perez-Gutierrez ,&nbsp;Manuel Alberto Gutierrez-Moreno ,&nbsp;Nadia Karina Portillo-Ortiz ,&nbsp;Edmundo Berumen-Nafarrate","doi":"10.1016/j.asmart.2025.04.001","DOIUrl":"10.1016/j.asmart.2025.04.001","url":null,"abstract":"<div><h3>Objective</h3><div>This study aims to compare the clinical and radiographic outcomes of the tight-rope system versus internal fixation with a hook plate for treating grade III-VI acute acromioclavicular dislocation.</div></div><div><h3>Methods</h3><div>Relevant studies were identified by searching PubMed, Cochrane, and Google Scholar, from January 2017 to December 2023. The primary focus of the study revolved around evaluating various factors such as the Constant Score, University of California Los Angeles (UCLA) Shoulder Score, Visual Analogue Scale (VAS), coracoclavicular distance (CCD), and incidences of complications. The analysis involved determining the weighted mean difference (WMD) along with its corresponding 95 % confidence intervals (95 % CIs), or risk ratios (RR) with 95 % CIs to quantify the collected data.</div></div><div><h3>Results</h3><div>Eight studies comprising 484 participants were included. Significant differences were observed in the Constant-Murley score between groups. However, no disparities were found in UCLA scores, VAS scores, or CCD improvement. Subgroup analyses also yielded consistent results.</div></div><div><h3>Conclusions</h3><div>Both treatment modalities demonstrated similar clinical and radiographic efficacy in alleviating pain, enhancing acromioclavicular joint function, and correcting coracoclavicular distance. Nevertheless, the TightRope system exhibited additional advantages, including reduced reoperation rates and lower risk of subacromial distal clavicle osteolysis.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 8-14"},"PeriodicalIF":1.5,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of clinical outcomes of superior capsular reconstruction and reverse shoulder arthroplasty for irreparable rotator cuff tears in patients aged 65 and older: A propensity score-matched study","authors":"Seong Hun Kim ,&nbsp;Seung Joo Kim ,&nbsp;Jae-Hoo Lee","doi":"10.1016/j.asmart.2025.08.001","DOIUrl":"10.1016/j.asmart.2025.08.001","url":null,"abstract":"<div><h3>Background/objective</h3><div>In young patients with massive irreparable rotator cuff tears (MRCTs), superior capsular reconstruction (SCR) is a viable surgical treatment option, whereas SCR and reverse shoulder arthroplasty (RSA) are reliable treatments for irreparable MRCTs in patients aged &gt;65 years. This study aimed to compare the outcomes of arthroscopic SCR and RSA in patients with MRCTs without arthritis aged ≥65.</div></div><div><h3>Methods</h3><div>This retrospective comparative study included 202 patients ≥65 years old with irreparable MRCTs who had undergone either SCR using a 3–4 mm single-layer human acellular dermal matrix or RSA between January 2017 and December 2021. All patients underwent at least 2 years of postoperative follow-up. Propensity score matching was performed based on age, sex, dominant-arm involvement, follow-up duration, body mass index, pseudoparalysis, bone mineral density, global fatty degeneration index, and rotator cuff tear size. A total of 44 matched patients (22 with SCR and 22 with RSA) were included in the analysis. Clinical outcomes were assessed using the visual analog scale (VAS) for pain, American Shoulder and Elbow Surgeons (ASES) score, Constant score, Single Assessment Numeric Evaluation (SANE), and active range of motion (ROM). Postoperative radiological evaluations were performed to assess healing failure.</div></div><div><h3>Results</h3><div>No significant differences were observed in the preoperative demographic data, clinical outcomes, or active ROM between the SCR and RSA groups. At the final follow-up, significant improvements in pain, ROM, and functional outcomes were observed in both groups. However, the SCR group had significantly higher ASES scores (88.6 ± 7.5 vs. 81.0 ± 12.0; <em>p</em> = 0.02), Constant scores (72.4 ± 8.9 vs. 65.0 ± 7.0; <em>p</em> &lt; 0.01), and SANE scores (87.2 ± 8.4 vs. 81.2 ± 6.8; <em>p</em> = 0.01) than the RSA group. Postoperative active ROM was also superior in the SCR group for forward flexion (157.7 ± 21.2° vs. 141.2 ± 16.0°; <em>p</em> &lt; 0.01) and internal rotation (8.1 ± 1.4 vs. 9.5 ± 2.0; <em>p</em> = 0.01) compared with the RSA group. Healing failure occurred in 6 patients in the SCR group (27.3 %).</div></div><div><h3>Conclusion</h3><div>SCR and RSA resulted in reliable improvements 2 years post-surgery in patients aged &gt;65 years without glenohumeral joint arthritis. However, SCR provided superior outcomes in terms of forward flexion, internal rotation, and functional scores. These results suggest SCR as a more effective treatment option than RSA for irreparable MRCT in this population.</div></div><div><h3>Level of evidence</h3><div>Level III, Retrospective comparative study.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 54-61"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145117716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative assessment of graft maturation after anterior cruciate ligament reconstruction using quadriceps tendon: Insights from ultra short echo time T2∗ mapping","authors":"Naoki Takemoto ,&nbsp;Yasushi Takata ,&nbsp;Miho Okuda ,&nbsp;Yoshihiro Ishida ,&nbsp;Manase Nishimura ,&nbsp;Kentaro Fujita ,&nbsp;Mikino Saito ,&nbsp;Satoru Demura ,&nbsp;Junsuke Nakase","doi":"10.1016/j.asmart.2025.09.003","DOIUrl":"10.1016/j.asmart.2025.09.003","url":null,"abstract":"<div><h3>Background</h3><div>Recently, the quadriceps tendon (QT) has gained attention as a graft material for anterior cruciate ligament (ACL) reconstruction. However, no study has yet evaluated the maturation process of the reconstructed ACL using QT grafts. Magnetic resonance imaging (MRI)-Ultra Short Echo time (UTE) T2∗ mapping is a precise technique for quantifying tissue states in tendons and ligaments. This study aimed to prospectively observe trends in UTE-T2∗ values for the intra-articular and intra-osseous regions of the reconstructed ACL from 6 to 12 months following ACL reconstruction using MRI-UTE-T2∗ mapping and to assess graft maturation of the reconstructed ACL with QT grafts.</div></div><div><h3>Methods</h3><div>This study enrolled 10 patients (five males and five females). For each patient, UTE-T2∗ values were measured at 6, 9, and 12 months postoperatively. A two-way mixed ANOVA was performed with time (6, 9, and 12 months) as a within-subjects factor and location (intra-articular, tibial intra-osseous, and femoral intra-osseous) as a between-subjects factor.</div></div><div><h3>Results</h3><div>A significant main effect of time was observed (F (2,54) = 38.162, p &lt; 0.001), with UTE-T2∗ values decreasing as postoperative time progressed. Additionally, a significant main effect of measurement location was identified (F (2,27) = 95.853, p &lt; 0.001), with intra-articular UTE-T2∗ values being significantly higher than those in the tibial and femoral intra-osseous regions (p &lt; 0.001).</div></div><div><h3>Conclusion</h3><div>Quantitative assessment using MRI-UTE-T2∗ mapping following ACL reconstruction with QT grafts demonstrated that graft maturation progressed more rapidly in the intra-osseous region compared to the intra-articular region.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 68-73"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145319894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hip internal rotation restriction and heel raise mechanics as risk factors for Jones fractures in youth football players","authors":"Tomoki Koyama ,&nbsp;Yoshitomo Saita ,&nbsp;Tomohiko Tateishi ,&nbsp;Tomokazu Tanita ,&nbsp;Hiroki Ukita ,&nbsp;Toshiro Shima ,&nbsp;Nobuyuki Itaya ,&nbsp;Haruki Yaguchi ,&nbsp;Nanako Yamamoto ,&nbsp;Yu Mori ,&nbsp;Toshimi Aizawa ,&nbsp;Masashi Nagao","doi":"10.1016/j.asmart.2025.08.007","DOIUrl":"10.1016/j.asmart.2025.08.007","url":null,"abstract":"<div><h3>Background</h3><div>Jones fractures, stress fractures at the proximal metaphyseal-diaphyseal junction of the fifth metatarsal, are common in sports that involve repetitive jumping and turning, particularly football (i.e., soccer). The incidence among Japanese football players is higher than in Europe, with a high refracture rate, particularly in conservatively managed cases. Although surgical treatment is preferred for athletes, limited data exist on risk factors in youth players. This study aimed to investigate the prevalence and risk factors for Jones fractures among high-level Japanese high school football players through medical examinations.</div></div><div><h3>Methods</h3><div>Medical examinations were conducted during the 2024 tournament involving 20 top-level high school teams (567 players). Ultrasound and X-ray imaging identified fractures, and players underwent various physical tests, including hip internal rotation (HIR) and weight-bearing position during a single heel raise (SHR). A questionnaire collected demographic data and fracture histories. Statistical analyses, including the Wilcoxon signed-rank test and Mann-Whitney <em>U</em> test, were conducted to determine associations with fracture risk.</div></div><div><h3>Results</h3><div>Of 232 male players (40.9 % of all), 18 (7.8 %) tested positive on ultrasound, seven (3.0 %) had confirmed fractures on radiography, and 11 reported a history of Jones fractures. Players with restricted HIR &lt;30° and lateral weight-bearing during SHR showed a significantly higher fracture risk (Crude Odds Ratio: 3.74, p = 0.01). Additional lateral weight bearing during SHR increased the risk (Crude Odds Ratio, 4.02; p = 0.007).</div></div><div><h3>Conclusion</h3><div>Restricted HIR and lateral weight-bearing during SHR were identified as risk factors for Jones fractures in youth football players. Recognizing these factors may enable targeted preventive measures to reduce injury risk in high-level athletes.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 15-20"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144879024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arthroscopic T-shaped biceps tenotomy decreased risk of Popeye deformity compared to traditional biceps tenotomy","authors":"Yen-Wei Huang ,&nbsp;Pu-Kuang Wang ,&nbsp;Shen-Wu Hung ,&nbsp;Yu-Pin Chen ,&nbsp;Wei-chun Chang ,&nbsp;Yi-Jie Kuo ,&nbsp;Tai-Yuan Chuang","doi":"10.1016/j.asmart.2025.08.002","DOIUrl":"10.1016/j.asmart.2025.08.002","url":null,"abstract":"<div><h3>Purpose</h3><div>This study compared the clinical efficacy of T-shaped biceps tenotomy (release of the long head of the biceps tendon with a portion of the superior labrum) with that of conventional cylinder-shaped biceps tenotomy (without the labrum) in patients with reparable rotator cuff tears and concomitant lesions of the long head of the biceps tendon.</div></div><div><h3>Methods</h3><div>Among patients who underwent arthroscopic repair of rotator cuff tears and concomitant lesions of the long head of the biceps tendon, 89 patients aged ≥65 years who were treated with T-shaped biceps tenotomy (group T; n = 46) or conventional cylinder-shaped biceps tenotomy (group C; n = 43) were evaluated. The presence of a Popeye deformity, severity of cramping pain, elbow flexion strength, and forearm supination strength were recorded. The anatomic status of the biceps stump was assessed through ultrasonography. Anatomic failure was considered when the biceps tendon was not identified in the intertubercular groove.</div></div><div><h3>Results</h3><div>Overall, 86 patients (45 in group T and 41 in group C) were monitored for more than 2 years. Their postoperative functional scores were significantly better than their preoperative scores (<em>P</em> &lt; 0.03) and did not differ significantly between the two groups. Three patients (6.7 %) in group T and nine (22.0 %) in group C had a Popeye deformity (<em>P</em> = 0.036). Ultrasonography revealed anatomic failure in five patients (11.1 %) in group T and 13 (31.7 %) in group C (<em>P</em> = 0.021). Postoperative cramping pain and elbow flexion strength were evaluated, showing no significant differences between groups.</div></div><div><h3>Conclusions</h3><div>For treating concomitant LHBT lesions in patients with rotator cuff tears, T-shaped tenotomy involving a portion of the superior labrum is an acceptable alternative to conventional cylinder-shaped tenotomy not involving the labrum. T-shaped tenotomy is associated with similar functional outcome and lower occurrence rates of a postoperative Popeye deformity than conventional cylinder-shaped tenotomy.</div></div><div><h3>Level of evidence</h3><div>Level III, retrospective comparative study.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 47-53"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145018871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection and classification of supraspinatus pathologies on shoulder magnetic resonance images using a code-free deep learning application","authors":"Onur Engin ,&nbsp;Ceren Durmaz Engin ,&nbsp;Atilla Hikmet Çilengir ,&nbsp;Berna Dirim Mete","doi":"10.1016/j.asmart.2025.04.005","DOIUrl":"10.1016/j.asmart.2025.04.005","url":null,"abstract":"<div><h3>Objective</h3><div>To evaluate the performance of a code free deep learning (CFDL) application in diagnosing supraspinatus tendon pathologies on shoulder magnetic resonance imaging (MRI) images.</div></div><div><h3>Design</h3><div>This retrospective cross-sectional study included patients with supraspinatus MRI showing partial or full-thickness tears and tendinosis, with patients having normal findings as the control group. MRI images were processed in the LobeAI application using transfer learning with ResNet-50 V2 for model development. Models were built to differentiate each pathology from normal and full-thickness tears from partial tears.</div></div><div><h3>Results</h3><div>The ML models developed using the LobeAI application demonstrated the ability to differentiate between normal shoulder MRI images and partial tears, full-thickness tears, and tendinosis with sensitivities of 93.75 %, 100 %, and 100 %, respectively, and specificities of 43.75 %, 62.5 %, and 18.75 %. The model designed to classify partial vs. full-thickness tears achieved an accuracy of 34.38 %. The model incorporating all pathological images compared to normal MRI images exhibited an accuracy of 37.50 % and a weighted F1 score of 0.32.</div></div><div><h3>Conclusion</h3><div>The results of the study suggest that, although CFDL applications may be promising for the initial detection of supraspinatus pathologies, their current iteration has limitations that must be resolved before they can be reliably integrated into clinical practice.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 1-7"},"PeriodicalIF":1.5,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143904355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}