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

{"title":"Is there a difference in bony stability at three months postoperatively between opening-wedge high tibial osteotomy and opening-wedge distal tuberosity osteotomy?","authors":"Suguru Koyama ,&nbsp;Keiji Tensho ,&nbsp;Kazushige Yoshida ,&nbsp;Hiroki Shimodaira ,&nbsp;Daiki Kumaki ,&nbsp;Yusuke Maezumi ,&nbsp;Hiroshi Horiuchi ,&nbsp;Jun Takahashi","doi":"10.1016/j.asmart.2024.10.001","DOIUrl":"10.1016/j.asmart.2024.10.001","url":null,"abstract":"<div><h3>Objective</h3><div>To compare the initial postoperative stability of opening-wedge high tibial osteotomy (HTO) and opening-wedge distal tuberosity osteotomy (DTO) and investigate the factors that influence initial stability.</div></div><div><h3>Methods</h3><div>Patients with the same operative indications who underwent HTO (n = 51) and DTO (n = 55) were included. Demographic and preoperative radiographic data (weight-bearing line percentage [%WBL], femoral-tibial angle [FTA], medial proximal tibial angle [MPTA], posterior tibial slope and correction angle), and postoperative computed tomography (CT) scan data (initial postoperative stability [12 weeks postoperative], and hinge fracture [1 and 12 weeks postoperatively], and hinge length, flange thickness, flange length, axial flange osteotomy angle, sagittal flange osteotomy angle [1 week postoperatively]) were statistically analyzed. As a subgroup analysis, HTO and DTO patients were divided into Stable and Unstable groups respectively based on postoperative CT at 12 weeks; demographic and radiological data were compared.</div></div><div><h3>Results</h3><div>Patients with DTO was significantly younger (median [range]; 59 [22, 73] vs 64 [45, 75], P = 0.02) and had a smaller preoperative deformity (%WBL: median [range]; 28.9 [12.8, 46.0] vs 24.3 [4.9, 44.3], P &lt; 0.01, FTA: median [range]; 179.0 [173.0, 183.0] vs 180.0 [172.5, 186.2], P &lt; 0.01, MPTA: median [range]; 84.0 [79.0, 87.1] vs 83.0 [78.2, 86.5], P = 0.04) and smaller correction angles (median [range]; 9 [6, 12] vs 10 [7, 15], P &lt; 0.01). Postoperative CT data showed that DTO was associated with significantly more unstable cases (stable/unstable: 31/24 vs. 39/12, P = 0.02) and hinge fractures (none/1/2/3: 24/25/3/3 vs. 36/12/1/2, P &lt; 0.01) and shorter hinge (median [range]; 27.8 [14.7, 43.4] vs 32.6 [22.5, 44.0], P &lt; 0.01) than HTO. The Unstable DTO group had significantly shorter hinges (median [range]; 23.2 [14.7, 33.9] vs 31.1 [15.2, 43.4], P &lt; 0.01) and thicker flanges (median [range]: 15.2 [9.0, 24.8] vs. 11.0 [6.8, 13.8], P &lt; 0.01) than the stable group. The other data were not significantly different between the two groups.</div></div><div><h3>Conclusion</h3><div>DTO resulted in less initial postoperative stability than HTO. The risk factors for initial instability in DTO were a short hinge and thick flange.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"39 ","pages":"Pages 1-8"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142706647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical outcomes over 2 years following arthroscopic ankle lateral ligament repair with os subfibulare","authors":"Shohei Sano,&nbsp;Noriyuki Kanzaki,&nbsp;Kiminari Kataoka,&nbsp;Koji Nukuto,&nbsp;Tetsuya Yamamoto,&nbsp;Yuta Nakanishi,&nbsp;Kyohei Nishida,&nbsp;Kanto Nagai,&nbsp;Yuichi Hoshino,&nbsp;Takehiko Matsushita,&nbsp;Ryosuke Kuroda","doi":"10.1016/j.asmart.2024.11.002","DOIUrl":"10.1016/j.asmart.2024.11.002","url":null,"abstract":"<div><h3>Background</h3><div>There are reports indicating that between 10 and 38.5 % of patients with chronic lateral ankle instability (CLAI) have an os subfibulare. In cases where CLAI accompanied by os subfibulare is resistant to conservative treatment, surgery may be necessary; however, there is no consensus on the most appropriate surgical method. We report outcomes of arthroscopic lateral ligament repair for chronic lateral ankle instability with os subfibulare at our hospital, followed for over 2 years post-operatively.</div></div><div><h3>Methods</h3><div>We reviewed 33 patients (39 ankles) whom underwent arthroscopic lateral ankle ligament repair (ALLR) for CLAI and followed for at least 2 years post-operatively between November 2015 and May 2020. Patients were classified into two groups: a group with os subfibulare (ossicle group) and a group without os subfibulare (non-ossicle group), based on the presence of an os subfibulare on pre-operative plain radiographs. ALLR surgeries were performed without resection of the os subfibulare in ossicle group. Clinical outcomes were assessed using the Japanese Society for Surgery of the Foot (JSSF) scale and the Self-administered Foot Evaluation Questionnaire (SAFE-Q). In addition, the bone-union rate was evaluated by using plain computer tomography in the ossicle group.</div></div><div><h3>Results</h3><div>There were significant improvements in the mean total JSSF scale scores from pre-operative to post-operative measurements in both the ossicle and non-ossicle groups. The mean scores for pain and related symptoms, foot function and activities of daily living, social functioning, shoe-related, and general health and well-being subscales of the SAFE-Q also showed significant improvements in both groups. There were no significant differences between the post-operative ossicle and non-ossicle groups regarding the JSSF scale scores or the SAFE-Q subscale scores. In the ossicle group, the bone-union rate was 14.3 % (2 of 14 ankles), but no symptom recurrence was observed.</div></div><div><h3>Conclusion</h3><div>The 2 years outcomes of arthroscopic lateral ligament repair for chronic lateral ankle instability with os subfibulare revealed good results and no symptom recurrence.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"39 ","pages":"Pages 9-14"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142706648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neural structural alterations correlates of quadriceps muscle strength deficits in patients after anterior cruciate ligament reconstruction","authors":"Le Yu ,&nbsp;Shanshan Zheng ,&nbsp;Yushi Chen ,&nbsp;Xiao'ao Xue ,&nbsp;Zikun Wang ,&nbsp;JiaYan Cheng ,&nbsp;Yang Sun ,&nbsp;He Wang ,&nbsp;Yinghui Hua","doi":"10.1016/j.asmart.2024.11.001","DOIUrl":"10.1016/j.asmart.2024.11.001","url":null,"abstract":"<div><h3>Background</h3><div>Persistent maladaptive changes of corticospinal tract (CST) and quadriceps strength deficits exist in patients with anterior cruciate ligament reconstruction (ACLR). This study aimed to investigate the relationships between the structural alterations of CST and quadriceps muscle strength deficits in patients with ACLR.</div></div><div><h3>Methods</h3><div>Twenty-nine participants who had undergone unilateral ACLR (29 males; age = 32.61 ± 6.72 years) were enrolled in a cross-sectional investigation. We chose CST as a region of interest and performed diffusion tensor imaging (DTI) that measured the microstructure of white matter tracts. Maximal voluntary isometric quadriceps muscle strength was assessed using a hand-held dynamometer. Simple and partial correlation analyses were performed between the DTI outcomes and quadriceps muscle strength deficits in patients with ACLR before and after controlling for age, sex, BMI, Tegner activity score, and graft type. Sub-group analyses were also performed to investigate the relationships between the DTI outcomes of CST structure and quadriceps muscle strength deficits according to the graft type before and after controlling for age, sex, BMI, and Tegner activity score.</div></div><div><h3>Results</h3><div>Lower limb symmetry index (LSI) of quadriceps muscle strength was associated with a higher ratio of radial diffusivity (RD, r = −0.379, p = 0.042) in corticospinal tracts of the injured hemisphere to those of the non-injured hemisphere in ACLR patients after controlling for age, BMI, Tegner activity score and graft type. In subgroup analyses of ACLR patients with hamstring autografts, we found that higher injured quadriceps muscle strength was associated with higher axial diffusivity (AD, r = 0.616, p = 0.033) of CST structure and lower LSI of quadriceps muscle strength was associated with higher ratio of mean diffusivity (MD, r = −0.682, p = 0.014) and RD (r = −0.759, p = 0.004) in corticospinal tracts of the injured hemisphere to those of the non-injured hemisphere in ACLR patients after controlling for age, BMI, Tegner activity score.</div></div><div><h3>Conclusion</h3><div>Decreased integrity (higher ratio of RD) of CST microstructure in ACLR patients was significantly associated with lower quadriceps limb symmetry index, which hinted that quadriceps muscle strength deficits of injured side may be a demyelinating process of CST microstructure in ACLR.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"39 ","pages":"Pages 30-36"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11714134/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142956579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel application of an imageless robotic system in simultaneous unicompartmental knee arthroplasty and anterior cruciate ligament reconstruction","authors":"Joshua Yeuk Shun Tran ,&nbsp;Rex Wang-Fung Mak ,&nbsp;Kevin Ki-Wai Ho ,&nbsp;Jonathan Patrick Ng ,&nbsp;Cham Kit Wong ,&nbsp;Gloria Yan-Ting Lam ,&nbsp;Tsz Lung Choi ,&nbsp;Michael Tim-Yun Ong ,&nbsp;Patrick Shu-Hang Yung","doi":"10.1016/j.asmart.2024.12.001","DOIUrl":"10.1016/j.asmart.2024.12.001","url":null,"abstract":"<div><div>This technical note explores the novel use of an imageless robotic surgical system for simultaneous unicompartmental knee arthroplasty (UKA) and anterior cruciate ligament reconstruction (ACLR). Knee osteoarthritis (OA) and anterior cruciate ligament (ACL) insufficiency are common conditions that traditionally require separate management. The integration of robotic assistance offers enhanced precision in surgical procedures, addressing both medial compartment OA and ACL insufficiency in a single operation.</div><div>We present a case involving a 47-year-old patient with medial compartment osteoarthritis and complete ACL rupture. The patient underwent a simultaneous robotic-assisted UKA and ACLR using the CORI Surgical System (Smith&amp;Nephew, London, UK). This approach enables accurate tibial tunnel placement and precise soft tissue balancing. The robotic system facilitates real-time gap assessment and balancing, reducing the risk of over- or under-constraint during ACL graft tensioning.</div><div>The procedure was performed with a standard medial parapatellar approach. Key steps included hamstring autograft harvesting, femoral and tibial tunnel creation, and robotic-assisted implant positioning. Post-operative rehabilitation allowed full weight-bearing by the third week.</div><div>This case represents the first reported instance of using an imageless robotic system for simultaneous UKA and ACLR, highlighting its potential to standardize and improve results in complex knee surgeries.</div><div>This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"39 ","pages":"Pages 37-40"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718410/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142972686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ACL injury characteristics in badminton : A registry study with prospectively collected data on sports related epidemiology and injury mechanism of 539 badminton players","authors":"Niels Christian Kaldau,&nbsp;Frederik Flensted Andersen,&nbsp;Kristoffer Weisskirchner Barfod,&nbsp;Peter Nyby Hersnaes,&nbsp;Jesper Bencke,&nbsp;Per Hölmich","doi":"10.1016/j.asmart.2024.09.005","DOIUrl":"10.1016/j.asmart.2024.09.005","url":null,"abstract":"<div><h3>Background</h3><p>Over recent years, more anterior cruciate ligament (ACL) ruptures in badminton players have occurred. Little is known about the injury mechanism in badminton. The hypothesis is that most ACL injuries occur with single leg landings on the non-dominant leg in the backhand side or with lunge movements in the forehand side on the dominant leg. To inform prevention strategies the aim of this study was to investigate the mechanism of ACL injuries in badminton, specifically if ACL injuries occur in certain positions on the badminton court and/or with certain movements. Secondary aims were to investigate differences among gender, age groups and between recreational and tournament players.</p></div><div><h3>Methods</h3><p>The study, ACL Denmark, investigate ACL ruptures in a cohort of 90.610 participants diagnosed between 2000 and 2018. Of those, 539 participants reported ACL rupture during badminton and filled in an online questionnaire in December 2021–January 2022 on the injury mechanism and other injury characteristics. Data is presented as numbers, percentage, means (SD) and median (IQR) with chi square test or Fischers exact test for dichotomous outcomes.</p></div><div><h3>Results</h3><p>Most participants played badminton (n = 435, 81 %) as primary sport and 155 (29 %) reported to play on a competitive level (Tegner score 8). The rear court (n = 285, 40 %) was the most frequent location of injury but with a high percentage on the front and midcourt (n = 154, 22 %). The rear court was more prevalent among players aged 18–29 (p &lt; 0.001). The most prevalent movement preceding the ACL injury was the scissor kick jump on the rear court (100, 19 %) followed by lunge at the net (70, 13 %) and lunge at the rear court (69, 13 %). One hundred and six players (15 %) were injured preceded by a deceptive shot from the opponent. The dominant leg was mainly injured in the forehand side and the non-dominant leg mainly in the backhand side.</p></div><div><h3>Conclusion</h3><p>The most prevalent movement preceding the ACL injury was the lunge followed by the scissor kick jump. The rear court was the primary location of ACL injury in badminton and the dominant knee has a higher risk of injury in the forehand side and the non-dominant knee in the backhand side. More focus on the technical performance of lunge and scissor kick jumps and development of a badminton specific ACL injury prevention program is needed in badminton.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"38 ","pages":"Pages 22-28"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000256/pdfft?md5=8242fc3d3c88de034375afd8a901680d&pid=1-s2.0-S2214687324000256-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142271352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The residual laxity of medial collateral ligament after magic point pie crusting MCL released in arthroscopic management of medial meniscus","authors":"Pinij Srisuwanporn ,&nbsp;Suriya Laksawut ,&nbsp;Jiradeth Tanulugpairoj ,&nbsp;Yottawee Chinakarn ,&nbsp;Phichit Khunvejvaidya ,&nbsp;Banchong Thantong","doi":"10.1016/j.asmart.2024.09.001","DOIUrl":"10.1016/j.asmart.2024.09.001","url":null,"abstract":"<div><h3>Background</h3><div>In order to do arthroscopic surgery on medial meniscus injuries, there must be enough joint space and good visibility for instrumentation. There is a possibility of iatrogenic cartilage damage if the medial joint space is reduced. Therefore, a medial collateral ligament (MCL) releasing procedure may be necessary for the majority of individuals with medial knee tightness. The MCL residual laxity after pie-crusting release during arthroscopic medial meniscus repair in medial knee tightness were studied in this study.</div></div><div><h3>Methods</h3><div>Between July 2022 and June 2023, fourteen patients (4 male, 10 female) underwent medial meniscus surgery with pie-crusting release of the superficial MCL. Mean age was 50 ± 10 years (range, 35–63 years). Medial meniscal lesions were meniscus root tear in 10 cases (71.5 %), longitudinal tear in 2 (14.5 %), horizontal tear in 1 (7 %) and radial tear in 1 (7 %). Preoperatively, valgus stress radiographs were obtained. During surgery if arthroscopic exploration revealed medial joint space narrowing after applying valgus force with the knee in 20 degrees of flexion, pie-crusting MCL release was performed. At the 3-month follow-up, valgus stress radiographs were obtained. Residual MCL laxity was assessed by comparing preoperative and 3-month follow-up medial joint space width measurements.</div></div><div><h3>Result</h3><div>At the 3-month follow-up, no significant increase in the medial joint space width on valgus stress radiograph was observed in comparison to the preoperative. The medial joint space width on valgus stress radiograph was 7.42 ± 1.16 mm preoperatively and 7.47 ± 1.15 mm at 3-month postoperatively (<em>p</em> value = 0.914). All patients had no intraoperative iatrogenic cartilage injury and no saphenous nerve injury after operation.</div></div><div><h3>Conclusions</h3><div>The magic point pie-crusting MCL release is a reliable and useful procedure to arthroscopic surgery in patients with medial meniscal injury and medial knee tightness. Furthermore, percutaneous pie-crusting MCL release had no effect on residual valgus laxity at the last follow-up.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"38 ","pages":"Pages 36-42"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142318609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early intervention of extracorporeal shockwave therapy sustained positive long-term effect on rotator cuff healing: A randomized controlled trial with 3-year follow-up","authors":"Yang Wu ,&nbsp;Hong Shao ,&nbsp;Mingru Huang ,&nbsp;Junru Lu ,&nbsp;Li Cao ,&nbsp;Yunxia Li ,&nbsp;Shurong Zhang ,&nbsp;Yunshen Ge","doi":"10.1016/j.asmart.2024.09.004","DOIUrl":"10.1016/j.asmart.2024.09.004","url":null,"abstract":"<div><h3>Background</h3><div>The long-term effects of extracorporeal shockwave therapy (ESWT) on rotator cuff repair are unknown.</div></div><div><h3>Objectives</h3><div>To investigate the functional outcomes and structural changes of ESWT at 3-year follow-up after rotator cuff repair.</div></div><div><h3>Methods</h3><div>A randomized clinical trial was conducted, including patients who underwent rotator cuff repair. The patients were assigned to two groups based on whether they underwent radial ESWT 3 months postoperatively. The ESWT Group received 5 weeks of rehabilitation and ESWT weekly, whereas the CONTROL Group received only rehabilitation. Visual analog scale (VAS) pain score and functional scores were analyzed at 3 months (baseline), 6 months, and 3 years follow-up. In addition, MRI and ultrasonography were used to assess tendon maturation, integrity, tendon quality, acromiohumeral distance (AHD), and muscle fatty infiltration.</div></div><div><h3>Results</h3><div>Finally, 32 participants completed all the assessments. At the final follow-up, 2 patients in the ESWT Group (16.5 %) versus one patient in the CONTROL Group (6.25 %) had rotator cuff failure (P = 0.176). The ESWT treatment showed similar clinical outcomes in VAS-pain score, functional scores, tendon quality, AHD, and muscle fatty infiltration versus the CONTROL Group (Ps &gt; 0.05). MRI analysis indicated improved tendon healing after ESWT treatment at both 6-month (P = 0.036) and 3-year follow-up (P = 0.028).</div></div><div><h3>Conclusion</h3><div>Early intervention with radial ESWT sustained long-term effects on the healing of the repaired rotator cuff and similar functional outcomes at long-term follow-up compared with standard rehabilitation.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"38 ","pages":"Pages 49-55"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In vivo kinematic comparison of bi-cruciate retaining total knee arthroplasty between mechanical alignment and functional alignment methods","authors":"Tomofumi Kage ,&nbsp;Kenichi Kono ,&nbsp;Tetsuya Tomita ,&nbsp;Takaharu Yamazaki ,&nbsp;Shuji Taketomi ,&nbsp;Ryota Yamagami ,&nbsp;Kohei Kawaguchi ,&nbsp;Ryo Murakami ,&nbsp;Takahiro Arakawa ,&nbsp;Takashi Kobayashi ,&nbsp;Sakae Tanaka ,&nbsp;Hiroshi Inui","doi":"10.1016/j.asmart.2024.09.002","DOIUrl":"10.1016/j.asmart.2024.09.002","url":null,"abstract":"<div><h3>Background/objective</h3><p>This study aimed to clarify the kinematics of bi-cruciate-retaining (BCR) total knee arthroplasty (TKA) by comparing the mechanical alignment (MA) and functional alignment (FA) methods and to evaluate differences between the two alignment methods.</p></div><div><h3>Methods</h3><p>The <em>in vivo</em> kinematics of 20 MA TKA and 20 FA TKA knees were investigated under fluoroscopy during squatting using a two-to three-dimensional registration technique. Accordingly, knee flexion angle, axial rotational angle, varus–valgus angle, anteroposterior translation of the medial and lateral low contact points of the femoral component relative to the tibial component and kinematic pathway were evaluated.</p></div><div><h3>Results</h3><p>No difference in the knee flexion angle was observed between the MA and FA TKA groups. Femoral external rotation was observed in both groups and no significant difference was observed. Significant varus alignment from extension to early flexion range was observed in the FA TKA group. The posterior translation of the medial side was smaller in the FA TKA group than in the MA TKA group. Conversely, no significant difference in the anteroposterior translation of the lateral side was observed. In the kinematic pathway, a medial pivot motion from 0° to 20° of flexion and a lateral pivot motion beyond 20° of flexion were observed in both groups.</p></div><div><h3>Conclusion</h3><p>During squatting in BCR TKA, the FA TKA group significantly showed varus alignment and smaller posterior translation of the medial side than the MA TKA group from extension to early flexion range.</p></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"38 ","pages":"Pages 14-21"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000219/pdfft?md5=8a9ccfb252d8684905b4fd045c3d0a69&pid=1-s2.0-S2214687324000219-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142228724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factors affecting the therapeutic effects of multiple intra-articular injections of platelet-rich-plasma for knee osteoarthritis","authors":"Kohei Kamada ,&nbsp;Takehiko Matsushita ,&nbsp;Takahiro Yamashita ,&nbsp;Tomoyuki Matsumoto ,&nbsp;Hideki Iwaguro ,&nbsp;Ryosuke Kuroda ,&nbsp;Satoshi Sobajima","doi":"10.1016/j.asmart.2024.09.006","DOIUrl":"10.1016/j.asmart.2024.09.006","url":null,"abstract":"<div><h3>Background</h3><div>Platelet-rich-plasma (PRP) is rapidly spreading as a conservative treatment option for knee osteoarthritis (KOA), however, its therapeutic efficacy is controversial. This study aimed to investigate the factors affecting the therapeutic effect of intra-articular PRP therapy for KOA in patients who received multiple PRP injections (PRP-I).</div></div><div><h3>Methods</h3><div>This is a historical cohort study included 1057 knees of 701 patients who received PRP-I during KOA treatment from 2018 to 2020. The difference in visual analog scale (VAS) scores before and after PRP-I was defined as the amount of change in VAS (ΔVAS). A linear mixed-effects model was employed with ΔVAS as a random effect and age, sex, BMI, KL classification, pre-treatment VAS, treatment duration, and the number of PRP injections as fixed effects. Evaluations using the Kellgren-Lawrence (KL) classification were added.</div></div><div><h3>Results</h3><div>Age, KL grade, and VAS score before treatment and after three, four, and five PRP-I were significantly associated with ΔVAS score. According to KL grade, age was significantly associated with ΔVAS score in the KL grade 4 group. VAS score before treatment was significantly associated with ΔVAS score, regardless of KL grade. Three-time PRP-I were significantly associated with ΔVAS in the KL-grade 1 and 2 groups. For KL grade 4, two or more PRP-I were significantly associated with the high efficacy.</div></div><div><h3>Conclusions</h3><div>Age, pain before treatment, KL grade and number of injections were associated with pain reduction after intra-articular PRP-I for KOA treatment. Pain reduction can be expected after PRP-I when patients are younger or experience severe pain before treatment. Three-time PRP-I are recommended to reduce pain in early-stage KOA and more than three times in advanced-stage KOA.</div></div><div><h3>Trial registration</h3><div>Retrospectively registration.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"38 ","pages":"Pages 43-48"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fast rehabilitation does not worsen clinical, radiological, and arthroscopic outcomes after medial meniscus posterior root repair: A retrospective comparative study","authors":"Masanori Tamura ,&nbsp;Takayuki Furumatsu ,&nbsp;Yusuke Yokoyama ,&nbsp;Yuki Okazaki ,&nbsp;Koki Kawada ,&nbsp;Toshifumi Ozaki","doi":"10.1016/j.asmart.2024.09.003","DOIUrl":"10.1016/j.asmart.2024.09.003","url":null,"abstract":"<div><h3>Background/Objective</h3><div>The main surgical treatment for medial meniscus posterior root tear (MMPRT) has shifted from meniscectomy to meniscus repair; however, there is no clear consensus regarding the optimal postoperative management strategy after MMPRT repair. This study aimed to perform a comparative analysis of patients who received conventional rehabilitation or fast rehabilitation following MMPRT repair.</div></div><div><h3>Methods</h3><div>The current retrospective cohort study compared clinical, radiological, and arthroscopic outcomes after conventional rehabilitation (group A, January 2020 to April 2020, 24 patients) with those after fast rehabilitation (group B, May 2020 to August 2020, 24 patients) in patients who underwent pullout repair for MMPRT. Partial weight-bearing and range of motion exercises were allowed 2 weeks postoperatively in group A and 1 week postoperatively in group B. In patients with an average weight of approximately 60 kg, full weight bearing was allowed 4 weeks postoperatively in group A and 3 weeks postoperatively in group B.</div></div><div><h3>Results</h3><div>At 12 months postoperatively, the clinical scores, including International Knee Documentation Committee and Japanese Knee Injury and Osteoarthritis Outcome Score, significantly improved in both groups (p &lt; 0.01). Although meniscus healing was achieved in both groups, medial meniscus extrusion significantly progressed by 0.9 mm in group A and 0.8 mm in group B (p &lt; 0.01, compared with preoperative extrusion). There were no significant differences in clinical scores, arthroscopic meniscal healing status, or medial meniscus extrusion progression on magnetic resonance images between the groups.</div></div><div><h3>Conclusion</h3><div>A fast rehabilitation protocol can be safely implemented without compromising patient outcomes after pullout repair for MMPRT.</div></div>","PeriodicalId":44283,"journal":{"name":"Asia-Pacific Journal of Sport Medicine Arthroscopy Rehabilitation and Technology","volume":"38 ","pages":"Pages 29-35"},"PeriodicalIF":1.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214687324000220/pdfft?md5=0d1d3caf8f4a1cd6c37f226b9a53e49b&pid=1-s2.0-S2214687324000220-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}