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

{"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}

{"title":"Increased posterior tibial slope leads to increased risk of graft rupture in anterior cruciate reconstruction: a retrospective matched case-control study","authors":"Wing-Leong Chan ,&nbsp;Keith Hay-Man Wan ,&nbsp;Eugene Pak-Lin Ng ,&nbsp;Christine Yuen-Shan Lai ,&nbsp;Richard Hin-Lun Lee ,&nbsp;Kevin Kwun-Hung Wong ,&nbsp;Kam-Kwong Wong","doi":"10.1016/j.asmart.2025.10.001","DOIUrl":"10.1016/j.asmart.2025.10.001","url":null,"abstract":"<div><h3>Purpose</h3><div>To investigate influence of an increased posterior tibial slope (PTS) on anterior cruciate ligament (ACL) reconstruction graft failure amongst ethnic Chinese in local subjects.</div></div><div><h3>Methods</h3><div>A total of number of 477 patients who had primary ACL reconstruction done from January 2008 to December 2021 were retrospectively reviewed. Ethnic Chinese patient graft size &gt;7 mm using Hamstring graft by single bundle technique were included. Patients with age more than 50 years old, known medical comorbidities on graft rupture such as diabetes, renal failure, previous contralateral ACL injury, previous ACL revision surgery, concomitant multi-ligamental injuries, high energy trauma such as road traffic accident, contact sport injury were excluded. Included patient with graft rupture and revision surgery done will be matched and compared with those without graft rupture after primary surgery. PTS of both groups of patients will be measured on their true lateral knee X-Ray before their primary ACL reconstruction. Data of both groups (age, sex ratio, graft size, PTS angle) will be compared through Fisher exact test, <em>t</em>-Test and logistic regression.</div></div><div><h3>Results</h3><div>The incidence rate on ACL revision in our local ethnic Chinese patient was around 4.6 % (22 cases). 25 revision cases were matched with 125 control cases, with no statistically significant difference on sex ratio, age at primary operation, graft size among both groups. PTS of revision patient group had significantly higher PTS angle than control group (95 % confident interval, 10.7° vs 8.6°; P &lt; 0.01). Logistic regression showed PTS as a significant factor affecting graft rupture outcome. Odd ratios of graft rupture due to increased PTS were 2.3 (P &lt; 0.01), with increased risk when PTS ≥11.6° shown in logistic regression.</div></div><div><h3>Conclusions</h3><div>High PTS (&gt;11.6°) will lead to increased ACL graft rupture risk and revision surgery amongst ethnic Chinese in Hong Kong. Patients with high PTS noted in pre-operative status should have their operation planned carefully and may require additional procedure such as slope-correcting operation and lateral augmentation to reduce risk of graft rupture.</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 81-85"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415515","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":"Prevalence of os acromiale in Japanese population: Comparison between patients with shoulder pain and asymptomatic subjects","authors":"Shinji Kawaguchi ,&nbsp;Shoji Fukuta ,&nbsp;Jun Kawamata ,&nbsp;Koichi Sairyo","doi":"10.1016/j.asmart.2025.09.002","DOIUrl":"10.1016/j.asmart.2025.09.002","url":null,"abstract":"<div><h3>Background</h3><div>Os acromiale, a condition in which the acromial apophysis fails to fuse, and its prevalence varies across ethnic groups. Although higher rates have been reported in African and Caucasian populations, data are scarce for Asian populations, particularly for Japanese individuals. This study aimed to determine the prevalence of os acromiale in a Japanese population and its association with rotator cuff-related symptoms.</div></div><div><h3>Methods</h3><div>We retrospectively identified 2221 shoulders of 1411 Japanese subjects aged over 25 years who underwent computed tomography (CT) of the shoulder at our institution between September 2010 and March 2023. The shoulders were divided into an asymptomatic group, which included 1386 shoulders of 693 patients with no documented history of shoulder pain who underwent chest CT for non-orthopedic reasons, and a symptomatic group, which included 836 shoulders of 800 patients who underwent arthroscopic surgery for rotator cuff tears or tendinopathy. Os acromiale was identified using three-dimensional CT and classified by location.</div></div><div><h3>Results</h3><div>Os acromiale was identified in 16 shoulders (0.72 %), 10 of which were classified as pre-acromial and 6 as meso-acromial. The prevalence was significantly higher in the symptomatic group than in the asymptomatic group (1.56 % vs 0.22 %, p = 0.002). No significant difference was observed according to sex or laterality.</div></div><div><h3>Conclusion</h3><div>The prevalence of os acromiale in Japanese was 0.72 %. The prevalence of this condition is markedly lower in this population than in African and Caucasian populations. However, its significantly higher occurrence in symptomatic patients suggests a potential role in shoulder pain associated with rotator cuff lesions. These results emphasize the importance of recognizing os acromiale as a possible anatomical contributor to shoulder symptoms in clinical practice.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"42 ","pages":"Pages 86-89"},"PeriodicalIF":1.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145415516","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":"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":"2025-07-01","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}

{"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}