Knee Surgery, Sports Traumatology, Arthroscopy最新文献

{"title":"Effect of alignment strategy on lower limb kinematics during stair descent after robot-assisted total knee arthroplasty","authors":"Zhijun Li,&nbsp;Philip Winnock de Grave,&nbsp;Tamaya Van Criekinge,&nbsp;Thomas Luyckx,&nbsp;Kurt Claeys","doi":"10.1002/ksa.70070","DOIUrl":"10.1002/ksa.70070","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Total knee arthroplasty (TKA) effectively treats end-stage osteoarthritis; however, many patients still struggle with gait and functional movements such as stair descent. This study investigates how two surgical alignment techniques, inverse kinematic alignment (iKA) and adjusted mechanical alignment (aMA), affect lower limb kinematics during stair descent compared to healthy controls.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Forty-five participants (15 per group: iKA, aMA, controls) performed low (165 mm) and high (280 mm) stair descent tasks. Sagittal hip, knee, and ankle movements were recorded with 3D motion capture and analysed using Statistical Parametric Mapping (SPM).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The aMA group exhibited significantly longer descent times for both low (<i>p</i> = 0.038) and high stairs (<i>p</i> = 0.003). Additionally, the aMA group demonstrated a reduction in trailing knee range of motion (ROM) during low stair descent (80.65°) compared to the control group (92.87°, <i>p</i> = 0.023). The mean joint angle of the trailing hip during low stair descent also differed significantly between the aMA group and healthy controls. Although no significant differences were observed in the trailing hip joint angle during low stair descent between the iKA and healthy control groups, substantial deviations were noted during high stair descent (<i>p</i> = 0.011). Furthermore, the ROM of the leading knee in the iKA group differed significantly from that of the healthy control group during both low and high stair descents.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The iKA group exhibited movement patterns that were slightly more similar to those of healthy controls during low stair descent but showed deviations during the more demanding high stair descent. These findings underscore the need for further research into the mechanisms underlying these adaptations to optimise rehabilitation and surgical strategies aimed at restoring more natural movement patterns in TKA patients.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level III.</p>\u0000 </section>\u0000 </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1354-1366"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145116024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KSSTA leadership update: Heartfelt thank you to Volker Musahl and very warm welcome to Robert Prill!","authors":"Michael T. Hirschmann,&nbsp;Elmar Herbst,&nbsp;M. Enes Kayaalp,&nbsp;Giuseppe Milano","doi":"10.1002/ksa.70361","DOIUrl":"10.1002/ksa.70361","url":null,"abstract":"&lt;p&gt;The ongoing success of &lt;i&gt;Knee Surgery, Sports Traumatology, Arthroscopy&lt;/i&gt; (&lt;i&gt;KSSTA&lt;/i&gt;) depends on scientific integrity, editing consistency and the dedicated efforts of individuals deeply committed to improving orthopaedic knowledge.&lt;/p&gt;&lt;p&gt;This editorial marks an important transition in the journal's leadership, reflecting both profound gratitude for past contributions and strong confidence in the future.&lt;/p&gt;&lt;p&gt;First and foremost, we would like to express our sincere appreciation to Volker for his outstanding service to &lt;i&gt;KSSTA&lt;/i&gt; over many years. Volker Musahl (Figure 1) is one of the international authorities when it comes to reconstructive knee surgery. He holds the Blue Cross of Western Pennsylvania Professorship at the University of Pittsburgh. Volker has decided to step down from his role as Deputy Editor-in-Chief to assume a new position as Deputy Editor at the &lt;i&gt;Journal of ISAKOS&lt;/i&gt;. Throughout his tenure, he has been a key figure in shaping &lt;i&gt;KSSTA&lt;/i&gt;, guided by a clear scientific vision, rigorous editorial judgement and an unwavering commitment to high methodological standards. His leadership has significantly strengthened the journal's international standing and fostered a culture of excellence, transparency and collaboration. We are deeply grateful for his contribution and are pleased that his expertise will continue to benefit the wider orthopaedic community [&lt;span&gt;1, 3, 4, 6&lt;/span&gt;]. With his departure, &lt;i&gt;KSSTA&lt;/i&gt; is not only losing a highly respected expert in reconstructive knee surgery but also a valued colleague and a dear friend.&lt;/p&gt;&lt;p&gt;The only constant in scientific life is the change. Change keeps us moving and fosters knowledge gain and innovation. Hence, we are delighted to welcome Robert Prill (Figure 2) in his new role as the new Deputy Editor-in-Chief of &lt;i&gt;KSSTA&lt;/i&gt;. He has been serving the journal as associate editor for many years. Robert Prill brings an outstanding and highly complementary profile to the journal's leadership. With a strong academic background in rehabilitation science, physiotherapy and evidence-based medicine, he has consistently worked at the interface of surgery, rehabilitation and outcomes research. His scholarly contributions include systematic reviews, meta-analyses, clinical trials, consensus statements and methodological studies, all aimed at enhancing the clinical relevance, clarity and quality of orthopaedic research.&lt;/p&gt;&lt;p&gt;Robert currently holds several international leadership roles, including chairing the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) rehabilitation committee and rehabilitation consensus initiatives, contributing to global guideline development and implementation projects. Right now, he chairs together with Volker and others the European Union-United States (EU-US) Anterior Cruciate Ligament Rehabilitation Consensus, after the formal EU-US Meniscus Rehabilitation Consensus being the second multicontinental and multidisziplin","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1187-1189"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esskajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ksa.70361","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147350237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Longitudinal tears of the posterior horn of the medial meniscus, intercondylar notch width, and posterior tibial slope are predictive factors for high-grade pivot shift in patients with anterior cruciate ligament rupture","authors":"Zhikuan Li,&nbsp;Yingzhen Niu,&nbsp;Zhuangdai Zhang,&nbsp;Yi Zheng,&nbsp;Siman Tian,&nbsp;Jiangtao Dong","doi":"10.1002/ksa.12743","DOIUrl":"10.1002/ksa.12743","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The purpose of this study was to investigate whether meniscal injury and bony factors can predict high-grade pivot shift (HPS).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This study retrospectively reviewed patients who underwent reconstruction surgery for anterior cruciate ligament (ACL) rupture. According to the grading of the pivot-shift test under anaesthesia preoperatively, patients were allocated into the HPS group and low-grade pivot shift (LPS) group. Baseline demographic and clinical characteristics, including meniscal injury location and type, were systematically documented. Anterior tibial translation (ATT) was quantified via side-to-side difference (SSD) measurements using a Ligs digital arthrometer. Radiographic assessments included posterior tibial slope (PTS) and lateral femoral condyle ratio (LFCR). Coronal tibial slope (CTS), intercondylar notch width (NW), and femoral condylar width (FCW) were evaluated using magnetic resonance imaging (MRI).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A total of 123 patients (77 males and 46 females, average age of 33.6 ± 12.7years) were included. Compared with the LPS group, the HPS group had a higher incidence of longitudinal tear of the medial meniscus posterior horn (MMPHL), smaller NW and FCW, larger PTS and CTS. Univariate and multivariate logistic analysis results revealed that MMPHL, NW, and PTS were significantly independent predictive factors for HPS. The cut-off value for PTS prediction of HPS was 12.3° (sensitivity 57.4%; specificity 69.1%) and that for NW prediction of HPS was 1.9 cm (sensitivity 83.8%; specificity 43.6%).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>MMPHL, smaller NW, and larger PTS were predictive factors for HPS in ACL rupture patients, with cut-off values of 1.9 cm (for NW) and 12.3° (for PTS).These findings help clinicians to timely identify patients at high risk of HPS preoperatively and better formulate surgical strategies.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level IV.</p>\u0000 </section>\u0000 </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1257-1270"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144577566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mild asymptomatic lateral osteoarthritis does not compromise outcomes after medial opening-wedge high tibial osteotomy","authors":"Dries Van Leemput,&nbsp;Jens Vanlommel,&nbsp;Nathalie Van Beek,&nbsp;Steven Claes","doi":"10.1002/ksa.70268","DOIUrl":"10.1002/ksa.70268","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>High tibial osteotomy (HTO) is a reliable treatment for medial gonarthrosis in painful varus knees, relieving pain by redistributing load to the lateral compartment. Traditionally, lateral compartment osteoarthritis (OA) has been considered a contraindication. However, the recent ESSKA consensus suggests that mild lateral OA may not be an absolute contraindication, although supporting evidence remains limited. This retrospective study investigates the safety and efficacy of HTO in patients with mild-to-moderate asymptomatic lateral OA, hypothesising that HTO provides significant pain relief and functional improvement.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A single-centre retrospective observational study was conducted on 132 patients who underwent HTO between 2017 and 2020 at AZ Herentals, Belgium. Inclusion criteria were completion of a 2-year postoperative questionnaire and preoperative magnetic resonance imaging (MRI) or single-photon emission computed tomography (SPECT-CT) within 1 year before surgery. The ‘Knee Injury and Osteoarthritis Outcome Score–Physical Function Short Form’ and ‘Numeric Pain Rating Scale’ were used. Lateral OA severity was assessed using radiographs, MRI and SPECT-CT. Outcomes were compared across different grades of lateral OA.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A total of 132 patients (95 men, 38 women; mean age 56 ± 8.7 years) were included. Patients with mild or moderate lateral OA signs on MRI showed significant improvement in pain and function up to 2 years. This was consistent with SPECT-CT and radiographic findings. No significant differences were observed between patients with different degrees of lateral OA. Linear regression revealed that larger osteophytes on MRI predicted more pain (<i>β</i> = 40.2, <i>p</i> = 0.0037) and worse function (<i>β</i> = 23.2, <i>p</i> = 0.049), while lower SPECT uptake predicted less pain (<i>β</i> = –16.9, <i>p</i> = 0.031).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>At 2 years post-HTO, pain and function did not differ significantly between patients with or without mild-to-moderate lateral gonarthrosis. Thus, mild asymptomatic lateral gonarthrosis should not be considered a contraindication for HTO. Longer-term studies are needed to confirm these findings.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level III, retrospective comparative study.</p>\u0000 </section>\u0000 </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1367-1376"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146021272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Knee pain associated with bone–patellar tendon–bone autografts does not limit activity levels, sports participation or quality of life after ACL reconstruction","authors":"Timothy McAleese,&nbsp;Niamh Keane,&nbsp;Kate Sheridan,&nbsp;Enda King,&nbsp;Kieran A. Moran,&nbsp;Mark Jackson,&nbsp;Daniel Withers,&nbsp;Ray Moran,&nbsp;Brian M. Devitt","doi":"10.1002/ksa.70008","DOIUrl":"10.1002/ksa.70008","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Bone–patellar tendon–bone (BPTB) and Hamstring (HT) autografts are commonly used for anterior cruciate ligament reconstruction (ACLR). Concerns exist regarding postoperative anterior knee pain (AKP) and kneeling discomfort with BPTB grafts. However, many studies solely report the presence/absence of anterior knee pain, without assessing its clinical significance in terms of functional limitation or impact on quality of life.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This study prospectively analysed 1407 patients undergoing primary ACLR with BPTB or HT autografts. Knee pain prevalence, severity, and location were measured at 6 months, 1 year, 2 years, and 5 years postoperatively using a pain questionnaire. Patient-reported measures (Knee Injury and Osteoarthritis Outcome Score [KOOS], Western Ontario and McMaster Universities Osteoarthritis Index [WOMAC], International Knee Documentation Committee [IKDC] and Marx) and return to play (RTP) rates were also collected to evaluate knee symptoms, function and activity levels. Multivariable regression identified factors associated with knee pain at each time point.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The mean age was 24.5  ±  7.1 years, with 74.3% male. BPTB grafts were used in 81% (<i>n</i> = 1145) and HT in 19% (<i>n</i> = 262). At 6 months, the BPTB group reported a higher prevalence of AKP (26% vs. 6%, <i>p</i> &lt; 0.001). There was no difference between graft types at 1 year and 2 years postoperatively. At 5 years, the BPTB group were 1.59 times more likely to report pain, although most pain was mild and there was no significant differences in KOOS, WOMAC, IKDC, Marx scores or RTP rates. Female patients (OR 1.41, <i>p</i> &lt; 0.035) and BPTB grafts (OR 1.78, <i>p</i> &lt; 0.004) were associated with knee pain at 6 months. At 5 years, older age (OR 1.06, <i>p</i> &lt; 0.001), BPTB grafts (OR 1.59, <i>p</i> &lt; 0.027), and medial femoral condyle chondral pathology (OR 1.7, <i>p</i> &lt; 0.020) increased the odds of having pain.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>BPTB grafts are associated with early AKP, which improves over time. AKP related to BPTB is mild and does not affect activity levels, sports participation or quality of life. Mild AKP should not deter surgeons from using BPTB autografts for ACLR, given the other advantages of this graft choice.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level II, prospective study.</p>\u0000 </section>\u0000 </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1221-1233"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145014269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lower synovial leucocyte count and polymorphonuclear percentage reliably differentiate periprosthetic joint infection after unicompartmental knee arthroplasty","authors":"Stefanie Donner,&nbsp;Georg Matziolis,&nbsp;Yves Gramlich,&nbsp;Igor Lazic,&nbsp;Daniel Schrednitzki,&nbsp;Anne Pohrt,&nbsp;Nora Renz,&nbsp;Nils Meißner","doi":"10.1002/ksa.70036","DOIUrl":"10.1002/ksa.70036","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>This study aimed to determine diagnostic thresholds for synovial fluid leucocyte count and polymorphonuclear (PMN) percentage to identify the diagnosis periprosthetic joint infection (PJI) in patients with failed unicompartmental knee arthroplasties (UKAs).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This multicentre retrospective cohort study included 239 patients who underwent revision of an UKA for either septic or aseptic indications at five university-affiliated medical centres. Among these, 30 patients (13%) underwent revision for PJI and 209 (87%) for noninfectious causes. PJI was diagnosed according to the European Bone and Joint Infection Society (EBJIS) criteria. Preoperative synovial fluid leucocyte count, synovial PMN percentage, serum C-reactive protein (CRP) and white blood cell (WBC) count were evaluated. Diagnostic performance and optimal thresholds for each parameter were assessed using receiver operating characteristic curves and Youden's index.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The PJI group demonstrated significantly higher median synovial leucocyte counts (11,399/μL vs. 429/μL, <i>p</i> &lt; 0.001), and significantly higher synovial PMN percentage (82% vs. 28%, <i>p</i> &lt; 0.001) compared to the non-PJI group. The optimal diagnostic cut-off for synovial fluid leucocyte count was 2318/μL (area under curve [AUC] 0.93; sensitivity 83%, specificity 95%) and for PMN percentage, 64% (AUC 0.90; sensitivity 76%, specificity 95%). Serum CRP (cut-off 9 mg/L; AUC 0.85) and WBC count (cut-off 8 G/L; AUC 0.71), showed lower diagnostic accuracy.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>This study establishes UKA-specific diagnostic thresholds for PJI, which are consistent with the EBJIS PJI criteria established for TKA. Synovial biomarkers, particularly synovial fluid leucocyte count and PMN percentage, demonstrated superior diagnostic performance compared to serum CRP and WBC count. These findings underscore the need for tailored diagnostic criteria to improve the accuracy of PJI diagnosis and guide clinical decision-making in UKA revision.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level III.</p>\u0000 </section>\u0000 </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1310-1317"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037359/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144995100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KSSTA leadership update: Welcoming Philipp Winkler as new Associate Editor for cartilage and meniscus","authors":"Michael T. Hirschmann,&nbsp;Elmar Herbst,&nbsp;Robert Prill,&nbsp;Enes Kayaalp,&nbsp;Giuseppe Milano","doi":"10.1002/ksa.70360","DOIUrl":"10.1002/ksa.70360","url":null,"abstract":"&lt;p&gt;&lt;/p&gt;&lt;p&gt;&lt;i&gt;Knee Surgery, Sports Traumatology, and Arthroscopy&lt;/i&gt; (&lt;i&gt;KSSTA&lt;/i&gt;) will continue to be successful and respected in the scientific community as long as it has strong editorial leadership, domain-specific knowledge and a clear commitment to methodological rigour and clinical relevance. Therefore, we are very happy to have Philipp Winkler, one of the former social media editors, joining us in a new role as an Associate Editor. He will be predominantly in charge of manuscripts addressing cartilage and meniscus.&lt;/p&gt;&lt;p&gt;Philipp Winkler is a great addition to the editorial team because he has a lot of clinical, academic, and international experience. He is currently the Head of Knee Surgery and Orthopaedic Sports Medicine at Kepler University Hospital Linz and an Associate Professor after completing his habilitation (venia legendi) in orthopaedics and trauma surgery. His clinical and scientific work is mostly about knee preservation surgery, especially meniscus pathology, cartilage repair, ligament biomechanics, and how the shape of bones affects reconstructive knee surgery.&lt;/p&gt;&lt;p&gt;In the past few years, Philipp has built a strong and consistent scientific profile by publishing high-quality original research, systematic reviews, biomechanical studies and consensus-related work in top international journals [&lt;span&gt;1, 2, 4-6, 8-11&lt;/span&gt;]. His work has dealt with important problems in meniscus repair and transplantation, cartilage restoration, osteotomies and ligament surgery, often connecting biomechanics and clinical decision-making [&lt;span&gt;1, 3, 7, 8, 11&lt;/span&gt;]. He is the perfect person to oversee the growing number and complexity of cartilage- and meniscus-related submissions to &lt;i&gt;KSSTA&lt;/i&gt; because of his wide range of knowledge and experience in the field.&lt;/p&gt;&lt;p&gt;Philipp is already deeply involved in the journal's work. He has been a reviewer, an Elite Reviewer and a Web and Social Media Editor for &lt;i&gt;KSSTA&lt;/i&gt; for many years. His deep understanding of the journal's standards, procedures, and long-term goals ensures that things stay the same while also bringing in new ideas. His international training, which included a Knee Research Fellowship at the University of Pittsburgh with Prof. Musahl, and his active participation in ESSKA, AGA, ISAKOS and national knee societies show how well-connected and willing to work with others he is.&lt;/p&gt;&lt;p&gt;Philipp Winkler will be the Associate Editor for cartilage and meniscus. He will be in charge of making sure that the scientific quality of published work stays high, that reporting is clear, and that the work is both methodologically sound and clinically relevant. His appointment makes &lt;i&gt;KSSTA&lt;/i&gt; an even stronger platform for knee preservation research and shows that the journal is dedicated to covering all aspects of knee surgery, from biology and biomechanics to patient-centred outcomes.&lt;/p&gt;&lt;p&gt;We are very happy to have Philipp Winkler join the Associate Editorial team. We look forward to working c","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1185-1186"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esskajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ksa.70360","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147314510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Welcoming Dr. Mahmut Enes Kayaalp as Deputy Editor-in-Chief","authors":"Michael T. Hirschmann,&nbsp;Elmar Herbst,&nbsp;Giuseppe Milano,&nbsp;Volker Musahl","doi":"10.1002/ksa.70341","DOIUrl":"10.1002/ksa.70341","url":null,"abstract":"<p>We are delighted to announce that Dr. Mahmut Enes Kayaalp will join the editorial leadership of Knee Surgery, Sports Traumatology, Arthroscopy (KSSTA) as Deputy Editor-in-Chief in 2026. His appointment strengthens our existing leadership team of Deputy Editors Giuseppe Milano, Elmar Herbst, and Volker Musahl, further enhancing KSSTA's ability to deliver clinically impactful, methodologically rigorous science to our global community.</p><p>Dr. Kayaalp is an internationally trained orthopaedic surgeon and sports-medicine specialist with recognised expertise in knee biomechanics, ACL reconstruction, posterior tibial slope and slope-reducing osteotomies, and joint preservation. He is currently Associate Professor at the University of Health Sciences, Istanbul (Türkiye). His training spans Türkiye and Germany and includes competitive international fellowships supported by DAAD, ESSKA, AGA, and TÜBİTAK, culminating in a Sports Medicine Fellowship at the University of Pittsburgh, Department of Orthopaedic Surgery, and the UPMC Freddie Fu Sports Medicine Center.</p><p>Scientifically, Dr. Kayaalp focuses on ACL biomechanics, tibial slope osteotomies, ligament reconstruction, as well as sensor-based motion analysis and applications of artificial intelligence in orthopaedics. He has authored 90+ publications (peer-reviewed articles and book chapters) and has been recognised with multiple international distinctions, including the 2025 ISAKOS Jan Gillquist Award (1st place), AOSSM Excellence in Research/Cabaud Finalist (2025), AOSSM Young Investigator Grant (co-investigator, 2023), and the ESSKA Best Poster Award (2022), alongside national awards such as the Best Oral Presentation at TUSYAD 2025.</p><p>Dr. Kayaalp has contributed continuously to KSSTA's editorial work since 2017—first as a Reviewer, then as KSSTA's founding Web Editor (2019), and most recently as Associate Editor (2024). Beyond KSSTA, he serves as Co-Editor of Joint Diseases and Related Surgery (JDRS) and previously held an Editorial Board position at the Journal of Arthroplasty. He has completed 200+ manuscript reviews across leading journals, including KSSTA, JEO, AJSM, Arthroscopy, Journal of Arthroplasty, and JISAKOS.</p><p>With his international training, robust scientific portfolio, and proven editorial leadership, Dr. Kayaalp brings rigour, innovation, and a global perspective to KSSTA. Together with Deputy Editors Giuseppe Milano, Elmar Herbst, and Volker Musahl, and our dedicated Editorial Board and reviewers worldwide, he will help drive KSSTA's mission: to advance excellence in knee surgery, sports traumatology, and arthroscopy—translating high-quality research into better decisions and better care for patients.</p>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1183-1184"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://esskajournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ksa.70341","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146204770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hand-minced cartilage versus microfracture for the repair of articular cartilage defects: A propensity score matched-pair analysis with 2-year follow-up","authors":"Jakob Hax,&nbsp;Louis Leuthard,&nbsp;Felix Öttl,&nbsp;Vincent A. Stadelmann,&nbsp;Stefan Preiss,&nbsp;Gian M. Salzmann,&nbsp;Armin Runer","doi":"10.1002/ksa.12728","DOIUrl":"10.1002/ksa.12728","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>First-time evaluation and comparison of clinical and functional short-term outcomes and revision rates between single-stage autologous hand-minced cartilage (MC) and microfracture (MFX) for knee cartilage lesions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>All patients undergoing MC or MFX (2015–2021) at a single centre were retrospectively analysed from a prospectively maintained database. Propensity score matching was used for gender, age, body mass index (BMI), defect localization (patellofemoral, tibiofemoral), American Society of Anesthesiologists (ASA) classification and baseline Core Outcome Measures Index (COMI). Included were knee cartilage lesions regardless of size or concomitant procedures, with 2-year follow-up. COMI and subjective International Knee Documentation Committee (sIKDC) scores were assessed preoperatively and 6, 12 and 24 months postoperatively. Postoperative complications and revision surgeries were recorded.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Thirty patients each were included in the MC (female: 11, age: 32 ± 10, body mass index [BMI]: 24.4 ± 4.7) and MFX (female: 11, age: 34 ± 8, BMI: 24.2 ± 3.2) groups. Isolated cartilage surgery was performed in 11 MC (37%) versus three MFX (10%) cases. In the MC group, 12 defects (40%; MFX 17, 57%) were tibiofemoral and 18 (60%; MFX 13, 43%) patellofemoral. The average defect size was 3.63 ± 2.02 for MC and 1.58 ± 1.12 for MFX (&lt;0.001). At 24 months, the COMI decreased similarly after MC (change score: −3.20 ± 2.05) and MFX (change score: −2.51 ± 2.52), with comparable sIKDC improvements (change score: MC: 25 ± 17; MFX: 20 ± 21). No significant difference was detected in achieving the minimal clinically important difference (MCID) at 24 months. Complications occurred in two MC (6.7%; graft hypertrophy) and three MFX (10%; method failure) cases.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>MC and MFX showed comparable short-term outcomes, despite larger defects in the MC group. Both are viable treatment options, though MFX showed limited durability in some cases.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level III.</p>\u0000 </section>\u0000 </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1198-1208"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144304320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reduced spinopelvic mobility does not correlate with knee flexion deformity in patients undergoing total knee arthroplasty","authors":"Lorenz Pichler,&nbsp;Rauf Alizada,&nbsp;Lea M. S. Cordes,&nbsp;Kerem Basarir,&nbsp;Asim Kayaalp,&nbsp;Reha Tandogan","doi":"10.1002/ksa.70047","DOIUrl":"10.1002/ksa.70047","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The aim of this study was to evaluate the impact of reduced spinopelvic mobility (SM) on knee flexion deformity (KFD) in patients undergoing total knee arthroplasty (TKA).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A retrospective analysis on 213 patients (271 knees) undergoing robotic-assisted primary TKA was conducted. Sagittal spinopelvic alignment (SSA) parameters—sacral slope (SS), pelvic incidence (PI), and pelvic tilt (PT)—were measured on lateral standing and sitting spinopelvic radiographs. Patients were stratified according to established SM classifications: standing-sitting difference in SS ≥ 10° versus &lt; 10°, PT ≥ 20° versus &lt; 20°, and Dorr's classification (DC). KFD was assessed intraoperatively using a robotic-assisted surgical platform after placement of arrays: first in the native state (KFDb), and again after osteophyte removal and maximum manual correction (KFDa). Correlations between standing-sitting changes in SSAs and KFDb/KFDa, as well as differences in mean KFDb/KFDa between SM groups, were analysed.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The mean differences between standing and sitting was 11.3° (SD 9.1) for SS and 6.9° (SD 9.8) for PT. Based on SM classifications, 129 knees (48%) showed a SS difference &lt; 10°, 30 knees (11%) a PT difference ≥ 20°, and DC categorised 131 (48%) as normal, 64 (24%) as stuck standing, 74 (27%) as stuck sitting, and 1% as kyphotic. The mean KFDb and KFDa were 5° (SD 6) and 2° (SD 2), respectively. No significant correlations were found between standing-sitting changes in SSAs and KFDb or KFDa (correlation coefficients &lt; 0.1 for all). No significant differences in mean KFDb or KFDa were observed across SM classification groups (<i>p</i> &gt; 0.2 for all).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Spinopelvic mobility does not correlate with intraoperative knee flexion deformity in patients undergoing TKA suggesting that the increased knee flexion found among these patients is a dynamic rather than a permanent compensatory mechanism.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level III.</p>\u0000 </section>\u0000 </div>","PeriodicalId":17880,"journal":{"name":"Knee Surgery, Sports Traumatology, Arthroscopy","volume":"34 4","pages":"1346-1353"},"PeriodicalIF":5.0,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13037340/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145025132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}