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":"2025-10-01","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}

{"title":"The incidence of arthrogenic muscle inhibition in acute knee injuries: a prospective cohort study in a tertiary acute knee unit","authors":"M.J. Kennedy ,&nbsp;C.S. Leung ,&nbsp;T.C.F. Soh ,&nbsp;H. Sitton-Kent ,&nbsp;H.J. Thomson ,&nbsp;O. Hill ,&nbsp;T. Nunn ,&nbsp;O. Bailey ,&nbsp;G.P. Hopper ,&nbsp;R. Bhattacharyya","doi":"10.1016/j.asmart.2025.08.005","DOIUrl":"10.1016/j.asmart.2025.08.005","url":null,"abstract":"<div><h3>Background</h3><div>Arthrogenic Muscle Inhibition (AMI) is not well recognised and is therefore underdiagnosed. Improved understanding of AMI would allow improved patient treatment pathways and rehabilitation after acute knee injuries. The primary aim of this study was to evaluate the incidence of AMI in acute knee injuries. The secondary aim was to evaluate correlation between AMI and type of underlying knee injury.</div></div><div><h3>Methods</h3><div>This was a prospective cohort study. All patients reviewed by the acute knee service in a tertiary referral centre between January 01, 2023 and April 30, 2023 were included (n = 97). The patients were diagnosed with AMI by a fellowship trained orthopaedic consultant knee surgeon. The incidence was evaluated with descriptive statistics and logistic regression analysis performed to ascertain association of AMI with the underlying acute knee injury diagnosis.</div></div><div><h3>Results</h3><div>Of the 97 patients reviewed, 12 were excluded due to a mechanical block to extension on MRI imaging. Twenty-seven (31.8 %) of the 85 eligible patients were diagnosed with AMI. Nine of the twenty-seven patients (52 %) presenting with AMI had resolution of symptoms at the index clinic appointment with directed physical therapy. Patients with AMI were 6 times (OR 6.3, 95 % CI 1.48) more likely to have a diagnosis of patellofemoral (PFJ) dislocation (p = 0.013) than those with bone bruising or minor sprain. Other associations of AMI which did not reach statistical significance were meniscal tear (OR 4.2, 95 % CI 0.4) and ACL rupture (OR 3.5, 95 % CI 0.72).</div></div><div><h3>Conclusions</h3><div>AMI is common in acute knee injuries, affecting nearly a third of all patients reviewed. Patients with AMI were more likely to have an underlying diagnosis of PFJ dislocation than any other acute knee injury diagnosis, and was the only statistically significant association. Correct diagnosis and instituting immediate treatment can resolve &gt;50 % cases at the index clinic appointment. Treatment workflows incorporating early review and management could result in improved patient outcome and expedited recovery from AMI.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 62-67"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145319873","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":"2025-10-01","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":"Comparison of the healing rate with meniscal repair concomitant with anterior cruciate ligament reconstruction and isolated meniscal repair based on magnetic resonance imaging signal intensity","authors":"Yongun Cho ,&nbsp;Jin Hwan Ahn","doi":"10.1016/j.asmart.2025.09.004","DOIUrl":"10.1016/j.asmart.2025.09.004","url":null,"abstract":"<div><h3>Purpose</h3><div>The purpose of this study was to compare the healing rate of meniscal repair concomitant with anterior cruciate ligament (ACL) reconstruction and isolated meniscal repair based on Intrameniscal signal intensity (IMSI).</div></div><div><h3>Methods</h3><div>A total of 368 patients who underwent meniscus repair between March 2011 and July 2017 by an experienced single surgeon were enrolled. 228 patients were divided into the meniscus repair concomitant with ACL reconstruction (group A, n = 171) and isolated meniscal repair group (group B, n = 57). Magnetic resonance imaging (MRI) was performed preoperatively and 12 months postoperatively, measurements were conducted from the most prominent slice of meniscal tear (PSMT). IMSI of the PSMT was measured with the free line region-of-interest (ROI) tool in a picture archiving and communication system.</div></div><div><h3>Results</h3><div>Except for time of accident, no significant differences were found in terms of age, body mass index, posterior slope angle, or varus angle between two groups. There were statistically significant differences of post-operative adjusted mean IMSI of patients between the two groups using ANCOVA. The corrected postoperative adjusted mean IMSI in the coronal view of group A was an estimated mean (SD) of 1.44(0.08), and in group B was an estimated mean (SD) of 2.55(0.15). All the P-values were less than 0.05, which was the same compared with MRI values for healed meniscus.</div></div><div><h3>Conclusions</h3><div>IMSI is a simple and conventional parameter for the assessment of meniscal healing. The healing rate of meniscal repair concomitant with ACL reconstruction compared with isolated meniscal repair using IMSI was similar to that of MRI reading. Thus, concomitant ACL reconstruction significantly improves the healing process of meniscus.</div></div><div><h3>Level of evidence and study design</h3><div>Case control study.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 74-80"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145319890","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":"2025-10-01","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":"2025-10-01","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}