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

{"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":"2025-09-23","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":"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":"2025-09-09","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":"Arthroscopic outside-in “two-needle suture” technique for anterior horn tears of the lateral meniscus","authors":"Zheyue Zhu ,&nbsp;Qiao Liu ,&nbsp;Ying Ge ,&nbsp;Wenbin Liang ,&nbsp;Han Xue ,&nbsp;Guangwei Wu ,&nbsp;Ruochen Li ,&nbsp;Chen Zhang ,&nbsp;Rui Ma","doi":"10.1016/j.asmart.2025.08.003","DOIUrl":"10.1016/j.asmart.2025.08.003","url":null,"abstract":"<div><h3>Background</h3><div>The outside-in suture technique is regarded as a practical method for treating anterior horn tears of the lateral meniscus (LM). The conventional outside-in technique often requires a lumbar puncture needle or specialized instruments (Meniscus Mender II). In this study, we employed a relatively novel and practical outside-in “two-needle suture” technique for anterior horn of meniscus repair. This method is simple and does not require any specialized instruments.</div></div><div><h3>Objective</h3><div>The aim of this study is to report the use of the arthroscopic outside-in “two-needle suture” technique for repairing anterior horn tears of the LM and to evaluate its therapeutic effect to provide a foundation for the clinical management of anterior horn injuries of the LM.</div></div><div><h3>Methods</h3><div>From March 2019 to August 2023, 21 patients with anterior horn tears of the LM were treated at our orthopedic center using the “two-needle suture” technique. We recorded the operation times, tear classifications, Lysholm scores, IKDC scores, and Tegner scores preoperatively and postoperatively and analyzed the functional scores using paired t tests. Additionally, the Barrett criterion was employed to evaluate the healing status of the meniscus.</div></div><div><h3>Results</h3><div>In the “two-needle suture” method, only 20 mL hollow needles are used for suturing, with two needles advanced into the joint cavity from the superior and inferior surfaces of the meniscus. The first needle pulled the suture thread through the preset suture loop of the second needle, and then the suture thread was knotted outside the joint capsule. In our study, the follow-up period was 12.38 ± 1.83 months, and the operative time was 32.95 ± 11.89 min. Compared with the preoperative values, significant improvements in the Lysholm, IKDC, and Tegner scores were observed at the final follow-up (p &lt; 0.05). According to the Barrett criterion, the clinical healing rate of the meniscus was 90.48 %. In addition, no complications or risks were observed.</div></div><div><h3>Conclusion</h3><div>The arthroscopic “two-needle suture” technique for anterior horn tears of the LM was simple, fast and safe, with a high rate of clinical healing. This technique is useful and a valuable reference for the clinical management of anterior horn injuries of the LM.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 40-46"},"PeriodicalIF":1.4,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004030","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":"Electromyographic comparison of infraspinatus, anterior, and posterior deltoid fibres during belly press exercise and triceps overactivity","authors":"Yoshifumi Nanba ,&nbsp;Tatsuyuki Ohta ,&nbsp;Teruhiko Takata","doi":"10.1016/j.asmart.2025.08.004","DOIUrl":"10.1016/j.asmart.2025.08.004","url":null,"abstract":"<div><h3>Background/objective</h3><div>The Belly Press Exercise (BPE) is a key clinical tool, but its efficacy is dependent on proper execution. This study aimed to clarify the muscle activation patterns that differentiate a proper BPE from an inappropriate pattern characterized by compensatory shoulder extension. We hypothesized that an appropriate pattern would involve greater posterior deltoid activation for stabilization, while the inappropriate pattern would show increased triceps brachii activity.</div></div><div><h3>Methods</h3><div>Surface electromyography was used to record the activity of the infraspinatus, anterior deltoid, posterior deltoid, and long head of the triceps brachii in 15 healthy male participants. The sample size was based on prior similar investigations (e.g., [13, 19]). Muscle activation was compared between two conditions: an appropriate pattern (isolated internal rotation) and an inappropriate pattern (internal rotation with 10° of shoulder extension) under three different load conditions (2, 5, and 10 % of body weight).</div></div><div><h3>Results</h3><div>Posterior deltoid activity was significantly higher in the appropriate pattern across all load conditions. In contrast, triceps brachii activity was significantly higher in the inappropriate pattern, particularly under the 5 % and 10 % load conditions. No significant differences were observed for the anterior deltoid or infraspinatus between patterns.</div></div><div><h3>Conclusion</h3><div>The posterior deltoid acts as a key stabilizer during a proper BPE, while overactivity of the long head of the triceps brachii is a clear indicator of compensatory shoulder extension. These findings provide clinicians with evidence-based markers for monitoring BPE form to ensure its therapeutic efficacy and safety.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 36-39"},"PeriodicalIF":1.4,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988681","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":"2025-09-03","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":"Objective postoperative knee stability after 1-stage and 2-stage revision anterior cruciate ligament reconstruction","authors":"Ryohei Uchida ,&nbsp;Yukiyoshi Toritsuka ,&nbsp;Tomohiko Matsuo ,&nbsp;Masashi Kusano ,&nbsp;Takayuki Tsuda ,&nbsp;Wataru Ando","doi":"10.1016/j.asmart.2025.08.008","DOIUrl":"10.1016/j.asmart.2025.08.008","url":null,"abstract":"<div><h3>Background</h3><div>Revision anterior cruciate ligament reconstruction (ACLR) procedures are performed either as 1-stage or 2-stage surgeries. But there has been no report of comparison in postoperative knee stability between 1-stage and 2-stage Revision ACLR. Therefore, the present study aimed to compare postoperative anterior stability after 1-stage and 2-stage surgeries.</div></div><div><h3>Methods</h3><div>Objective anterior knee laxity was evaluated by knee arthrometer at 12+ months postoperatively among 35 patients who underwent revision ACLR.</div></div><div><h3>Results</h3><div>19 patients (Group 1: nine males and 10 females, mean age 26.4 ± 11.0 years) underwent 1-stage revision ACLR and 16 patients (12 males and four females, mean age 32.3 ± 10.6 years) underwent 2-stage revision ACLR with staged revision ACLR at six months after iliac bone grafting for large bone defects. At the final follow-up period (23 ± 9 months after 1-stage surgery and 21 ± 9 months after 2-stage surgery), procedures in two patients (10.5 %) after 1-stage surgery and one patient (6.7 %) after 2-stage surgery were found to have failed. KT side-to-side differences in anterior laxity at manual maximum force were 0.9 ± 1.1 mm and 0.9 ± 1.3 mm after 1- and 2-stage surgeries, respectively, with 94 % of patients after 1-stage surgery and 80 % of patients after 2-stage surgery showing anterior laxity values between −1 and 2 mm. We found no significant technique-dependent difference in objective anterior knee laxity between 1-stage and 2-stage revision ACLR.</div></div><div><h3>Conclusions</h3><div>After a minimum of 12 months of follow-up, patients who underwent 1-stage and 2-stage revision ACLR acquired sufficient knee stability regardless of surgical technique, showing no other significant differences.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 21-27"},"PeriodicalIF":1.4,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932109","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":"2025-08-21","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":"Does hip bone morphology differ depending on the presence of cam lesions in borderline developmental dysplasia of the hip?","authors":"Yuichi Kuroda,&nbsp;Tomoyuki Kamenaga,&nbsp;Shotaro Araki,&nbsp;Masanori Tsubosaka,&nbsp;Naoki Nakano,&nbsp;Tomoyuki Matsumoto,&nbsp;Shinya Hayashi,&nbsp;Ryosuke Kuroda","doi":"10.1016/j.asmart.2025.06.001","DOIUrl":"10.1016/j.asmart.2025.06.001","url":null,"abstract":"<div><h3>Background</h3><div>The purpose of this study was to divide patients with borderline developmental dysplasia of the hip (BDDH) into two groups according to the presence of Cam lesions, and compare radiographs related to bone morphology between them.</div></div><div><h3>Methods</h3><div>We retrospectively analyzed consecutive patients with BDDH who underwent hip arthroscopy (HA) or periacetabular osteotomy (PAO) at our institution between October 2013 and October 2019. The patients were classified into two groups according to the presence of Cam lesions. Radiographic measurements including lateral center-edge angle (LCEA), acetabular roof obliquity (ARO), cliff sign, femoral epiphyseal acetabular roof (FEAR) index, vertical center anterior angle (VCA), and Sourcil Index were compared between the two groups. The cutoff values were calculated using a receiver operating characteristic curve.</div></div><div><h3>Results</h3><div>Sixty-nine hips were analyzed in this study (Cam+: 34, Cam-: 35). The ARO and FEAR index were significantly higher in the Cam-group (P &lt; 0.001, P &lt; 0.001). The LCEA, VCA, and Sourcil Index was significantly lower in the Cam-group than that in the Cam + group (P &lt; 0.001, P &lt; 0.001, P &lt; 0.001). The cutoff values were 21.0° for LCEA, 15.1° for the ARO, 22.5° for the VCA angle, −2.2° for the FEAR index, and 49.5° for the Sourcil Index.</div></div><div><h3>Conclusion</h3><div>Patients with BDDH exhibited significant differences in bone morphology depending on the presence of Cam lesions. Moreover, those without Cam lesions displayed similarities to patients with DDH.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"41 ","pages":"Pages 14-19"},"PeriodicalIF":1.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535885","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":"Age-related changes in the quadriceps tendon: Collagen fibril diameter decreases with aging","authors":"Yoshihiro Ishida ,&nbsp;Yasushi Takata ,&nbsp;Tatsuya Ishikawa ,&nbsp;Mitsuhiro Kimura ,&nbsp;Naoki Takemoto ,&nbsp;Manase Nishimura ,&nbsp;Noriyuki Ozaki ,&nbsp;Satoru Demura ,&nbsp;Junsuke Nakase","doi":"10.1016/j.asmart.2025.06.002","DOIUrl":"10.1016/j.asmart.2025.06.002","url":null,"abstract":"<div><h3>Background</h3><div>The quadriceps tendon (QT) has recently gained attention as a graft tendon for anterior cruciate ligament (ACL) reconstruction due to its high strength from a larger ultrastructural collagen fibril diameter in children than that of the semitendinosus tendon. While QT collagen fibril diameter increases with growth, changes in older adults remain unclear. This study investigated age-related changes in QT collagen fibril diameter.</div></div><div><h3>Methods</h3><div>Twenty-four patients who had undergone ACL reconstruction using the QT or other knee surgeries were included. QT tissues collected during surgery were analyzed using transmission electron microscopy. Collagen fibril diameter was measured in four groups: Immature (11–13 years), Young (15–17 years), Adult (21–50 years), and Older (61–81 years). The average fibril diameter was calculated for each sample. At least four slides (one slide = one digital electron micrographs of the ultrathin section) were evaluated for each specimen, with at least 200 collagen fibrils on each slide. The average number of collagen fibrils measured per specimen was 812 ± 10. Data of the four groups were analyzed using one-way analysis of variance and Tukey's test.</div></div><div><h3>Results</h3><div>The mean collagen fibril diameters were 89.7 ± 14.4, 94.8 ± 16.4, 107.2 ± 12.1, and 73.0 ± 9.7 nm in the Immature, Young, Adult, and Older groups, respectively. Although no significant difference was observed between the Immature and Young groups, fibril diameter was significantly larger in the Adult group than in the Young group and significantly smaller in the Older group than in the other groups.</div></div><div><h3>Conclusions</h3><div>The average QT collagen fibril diameter increased with growth but was lower in the Older group, suggesting a decrease with aging.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"41 ","pages":"Pages 20-25"},"PeriodicalIF":1.5,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549529","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":"Hyperuricemia predicts adverse clinical outcomes after arthroscopic microfracture of osteochondral lesions of the talus","authors":"Yuanqiang Li ,&nbsp;Zhenyu Wang ,&nbsp;Guo Zheng ,&nbsp;Lin Ma ,&nbsp;Xin Xin Li ,&nbsp;Yan Liang ,&nbsp;Xinyu Xie ,&nbsp;Xiaolin Zhang ,&nbsp;Chengsong Yuan ,&nbsp;Wan Chen","doi":"10.1016/j.asmart.2025.04.004","DOIUrl":"10.1016/j.asmart.2025.04.004","url":null,"abstract":"<div><h3>Purpose</h3><div>To investigate the correlation of serum uric acid levels with the clinical outcomes of arthroscopic microfracture in osteochondral lesions of the talus (OLTs) and determine the cut-off point for predicting outcomes.</div></div><div><h3>Methods</h3><div>A total of 134 OLTs patients who underwent arthroscopic microfracture from November 2008 to June 2019 were included: 42 in the hyperuricemia group (≥ 420 μmol/L) and 92 in the non-hyperuricemia group (&lt; 420 μmol/L). Clinical characteristics recorded and analyzed included Visual Analog Scale (VAS score), American Orthopaedic Foot &amp; Ankle Society score (AOFAS), and 36-Item Short Form Health Survey score (SF-36). Logistic regression identified risk factors, and Receiver Operating Characteristic Curves (ROC) determined the serum uric acid cut-off value for predicting outcomes, which was prospectively validated.</div></div><div><h3>Results</h3><div>Significant improvement were observed in postoperative range of motion score, VAS score, AOFAS score, and SF-36 score across all patients (P &lt; 0.05). However, the VAS score for the non-hyperuricemia group was lower; In contrast, the AOFAS and SF-36 scores were higher than the hyperuricemia group during the last visit (P &lt; 0.05). Multivariate analysis identified age, serum uric acid, osteochondral defect size, and urate deposition as independent risk factors for clinical outcomes, and the cut-off value for the serum uric acid American Orthopaedic Foot &amp; Ankle Society score 445 μmol/L with sensitivity and specificity of 87.25 % and 81.25 %, respectively. Additionally, the derivation set demonstrated a sensitivity of 85.71 % and specificity of 83.33 % in predicting poor outcomes.</div></div><div><h3>Conclusion</h3><div>Hyperuricemia predicts adverse clinical outcomes after arthroscopic microfracture of osteochondral lesions of the talus, strict postoperative drop uric acid treatment, especially hyperuricemia OLTs serum uric acid levels ≥ 445μmol/L.</div></div><div><h3>Level of evidence</h3><div>Level IV, case series.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"41 ","pages":"Pages 6-13"},"PeriodicalIF":1.5,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144470467","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}