Orthopaedics & Traumatology-Surgery & Research最新文献

{"title":"Recovery of Pre-symptomatic Tegner Activity Level After Double-Level Osteotomy for Medial Compartment Osteoarthritis: Outcomes at 24 Months.","authors":"Ryo Nagashima, Riku Miyazaki, Mizuki Saito, Kazuyuki Goto, Katsunari Osawa, Naoki Yamada, Jun Hara, Woon-Hwa Jung, Ryohei Takeuchi","doi":"10.1016/j.otsr.2026.104976","DOIUrl":"https://doi.org/10.1016/j.otsr.2026.104976","url":null,"abstract":"<p><strong>Background: </strong>Double-level osteotomy (DLO) provides high return-to-sport rates, but these are generally based on the immediate preoperative activity level, which may already be reduced by knee pain. We evaluated recovery to a recalled pre-symptomatic activity level and associated factors.</p><p><strong>Hypothesis: </strong>Recovery would be less frequent against the pre-symptomatic reference than the immediate preoperative level.</p><p><strong>Patients and methods: </strong>This retrospective study included 51 DLO patients wishing to resume sports, with symptom durations below five years. Tegner activity scale (TAS) scores were recalled for five years before surgery and assessed immediately preoperatively and at 12 and 24 months. Exploratory Firth logistic regression included age, BMI, Kellgren-Lawrence grade, and preoperative Pain Catastrophizing Scale (PCS) to examine failure to recover the five-year TAS at 24 months.</p><p><strong>Results: </strong>Median [IQR] TAS was 5 [4-8] at the five-year reference, 3 [1-5] preoperatively, 4 [2-5] at 12 months, and 4 [3-7] at 24 months. At 24 months, 56.9% recovered the five-year TAS versus 88.2% recovering the preoperative TAS. Higher PCS was associated with failure to recover the five-year TAS (adjusted OR per point, 1.066; 95% CI, 1.008-1.143; p = 0.025).</p><p><strong>Discussion: </strong>Recovery proportions differed by reference, with interpretation limited by recall bias and patient selection. Higher PCS was associated with non-recovery in exploratory analysis.</p><p><strong>Level of evidence: </strong>III; retrospective cohort study.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104976"},"PeriodicalIF":2.7,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149290280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PRP injection in musculoskeletal pathology: what level of evidence, and what recommendations?","authors":"Hervé Bard","doi":"10.1016/j.otsr.2026.104972","DOIUrl":"10.1016/j.otsr.2026.104972","url":null,"abstract":"<p><p>Platelet-rich plasma (PRP) is a non-standardized autologous blood product that has been used for around 20 years in musculoskeletal pathology, initially by orthopedic surgeons and then by other locomotor specialists. Despite its growing use and numerous studies, benefit is controversial. Intra-articular injection in knee osteoarthritis were recently recommended by a few scientific societies and research groups, based on consensus. Tendinopathies and traumatic muscle pathology are still not covered by guidelines. In orthopedics, PRP and its derivative, platelet-rich fibrin (PRF), or bone marrow concentrates are used in non-union, aseptic osteonecrosis, in arthroscopic surgery, and pediatric orthopedics. Methodological difficulties related to variations in PRP quality and multiple biases explain the low level of evidence in controlled trials and meta-analyses, which do not always have the desired rigor. However, the experimental data are convincing, and biology is advancing rapidly to explain the mode of action of PRP, a complex biological system that acts as a buffer, restoring homeostasis and stimulating deficient tissue repair. After discussing the levels of evidence and the difficulties of phenotyping, the contraindications and adverse effects, rarely discussed in the literature, are presented. Solutions are proposed to advance knowledge and evidence for this treatment, which has the advantage of being more natural, without iatrogenic or adverse effects, but which must comply with rules of good practice and avoid abuses. PRP injections must be integrated into a comprehensive treatment plan with non-pharmacological measures and post-procedural care that needs to be better defined. The future likely lies in using different types of PRP depending on the pathology and the patient, probably combined with other orthobiotherapies, for more efficient personalized medicine.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104972"},"PeriodicalIF":2.7,"publicationDate":"2026-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149277246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Epidemiology of paediatric traumatology: history, evolution, and perspectives.","authors":"Elie Saliba, Yan Lefevre","doi":"10.1016/j.otsr.2026.104973","DOIUrl":"https://doi.org/10.1016/j.otsr.2026.104973","url":null,"abstract":"<p><p>Paediatric traumatology sits at the crossroads of orthopaedics, paediatric surgery, and public health. This instructional lecture addresses four questions: what is the global epidemiological burden of acute paediatric trauma? What are the specific features and growing importance of sports-related injuries, both acute and chronic? What are the specificities of paediatric polytrauma assessment and care organisation? How have evolving surgical practises and prevention policies transformed patient outcomes? After a brief historical overview, the article presents global epidemiological data, details acute and overuse sports injuries as a major twenty-first-century challenge, analyses validated polytrauma assessment tools and discusses surgical management trends for long-bone fractures. Future perspectives emphasise multidisciplinary collaboration, SROS-based care pathways, harmonised EPOS training programmes and evidence-based reassessment of surgical thresholds.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104973"},"PeriodicalIF":2.7,"publicationDate":"2026-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149277265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Insertional Achilles tendinopathy State of pathology: Insertional tendon tendinopathies.","authors":"Marc Elkaïm","doi":"10.1016/j.otsr.2026.104974","DOIUrl":"10.1016/j.otsr.2026.104974","url":null,"abstract":"<p><p>Insertional Achilles tendinopathy (IAT) is a common but disabling pathology affecting both athletes and older subjects. The aim of the present study was to provide a practical review of IA, addressing the following questions: What are the etiologies and pathophysiology? Etiology is multifactorial, involving anatomic aspects and especially posterosuperior calcaneal prominence, biomechanical aspects such as short triceps surae, pes cavus or hindfoot varus, extrinsic aspects of footwear and overtraining, and metabolic aspects. Pathophysiology, depending on the individual case, implicates true insertional tendinopathy and posterior bone-tendon impingement to varying degrees, often with pre-Achilles bursitis; the distinction is crucial to decision-making. Impingement or enthesopathy lead to progressive disorganization of the collagen matrix, pathologic neovascularization and mucoid degeneration of the tendon, often with intratendon calcifications and inflammatory retrocalcaneal bursitis. How to establish diagnosis? Diagnosis is primarily clinical, based on pain location, which is median in case of insertional tendinopathy and more lateral in case of posterior impingement with bursitis. Examination finds pain on palpation of the Achilles insertion, sometimes with local thickening, posterior tumefaction and painful restriction of ankle dorsiflexion. Tensing the tendon typically reproduces the pain. Functional tests may show restriction due to pain, without tendon tear. Weight-bearing X-ray, ultrasound and especially MRI analyze the respective roles of bone, tendon and bursa injury; weight-bearing CT can be contributive in some morphologically complex situations. Ultrasound reveals tendon thickening, hypoechogenic degenerative areas, hypervascularization on Doppler and associated bursitis. MRI shows lesion extension: intratendon degeneration, deep fiber involvement and retrocalcaneal inflammation. What are the non-operative treatments? Initial treatment is conservative, based on adapting weight-bearing and footwear, with exercises adapted to the form of the insertion, extracorporeal shock waves and rehabilitation. What are the surgical options and their expected results? In case of failure of well-conducted non-operative treatment, surgical strategy depends on lesion type, degree of posterior impingement, degree of tendon degeneration and degree of triceps surae stiffness. Expected results comprise pain relief, functional improvement on VISA-A score, and progressive return to activities, with timing depending on the technique and the initial level of activity. How to choose the surgical treatment? Surgical options comprise bone decompression, debridement and tendon reinsertion, flexor hallucis longus transfer and gastrocnemius lengthening depending on lesion type on clinical examination and imaging.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104974"},"PeriodicalIF":2.7,"publicationDate":"2026-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149277251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of patient-specific instrumentation for hip resurfacing arthroplasty: Measurement of accuracy using pre and postoperative CT-scan.","authors":"Mehdi Hormi-Menard, Philippe-Alexandre Faure, Martin Bauters, Ramez Shaker, Julien Girard","doi":"10.1016/j.otsr.2026.104934","DOIUrl":"https://doi.org/10.1016/j.otsr.2026.104934","url":null,"abstract":"<p><strong>Background: </strong>Hip resurfacing arthroplasty (HRA) is a valuable option for the treatment of primary osteoarthritis in young patients. However, the learning curve for femoral component implantation remains long. Few data are dedicated to patient-specific instrumentation (PSI) in this indication, and merely applied to limited study groups using X-rays as tool to assess accuracy of the method. Therefore, we conducted a prospective study assessing the results of PSI for HRA using pre- and postoperative CT scans based aiming to: 1) assess the accuracy of the planned axis in the axial and coronal planes, 2) evaluate if 3D planning could reproduce the native head diameter by a maximum deviation of one implant size (2 mm) from the component ultimately implanted.</p><p><strong>Hypothesis: </strong>Our hypothesis was that PSI-assisted femoral component implantation would achieve an average accuracy within 5 ° of the planned axis in the axial and coronal planes.</p><p><strong>Materials and methods: </strong>This prospective study analyzed 49 patients (51 HRA) with complete data from an initial cohort of 50 patients. On pre- and post-operative CT scans, the native caput-collum-diaphyseal (CCD) angle, stem-shaft angle (SSA), femoral anteversion and head diameter were measured. The objectives for the PSI jig were to restore head diameter, femoral anteversion and to implant the femoral component with a planned +5 ° valgus alignment in the coronal plane.</p><p><strong>Results: </strong>During the surgery, the calcar-guided PSI (inferior jig) was used in 39 cases (76.4%), and the posterior neck-guided PSI (posterior jig) was used in 12 cases (23.6%). No jig failures were observed. Native femoral anteversion averaged 20 ° (range, 15-24) compared to 18.5 ° (range, 10-27 °) postoperatively (p = 0,3). The mean preoperative CCD was 132.5 ° (range, 126-137). The planned SSA was 138 ° (range, 132-143) while the postoperative SSA was 136.5 ° (range, 129-143) (p = 0,1). With accurate positioning being defined as placement within 5 ° of the planned anteversion and SSA, 48 cases (94.1%) achieved the desired femoral component positioning. The mean acetabular cup and femoral head diameters were respectively 58 mm (range, 54-64) and 52 mm (range, 48-58). The native head diameter averaged 51.5 mm (range, 47-57) (p = 0,2).</p><p><strong>Discussion: </strong>The accuracy of the HRA position was excellent, with more than 94% of cases achieving desired positioning. The maximum difference between the planned and implanted head sizes was 2 mm (1 size), confirming our hypothesis. These findings support the use of this type of PSI for the HRA procedure.</p><p><strong>Level of evidence: </strong>IV; prospective case series.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104934"},"PeriodicalIF":2.7,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149229290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Predicting postoperative outcomes in small rotator cuff tears: An AI-based approach to long head of the biceps management.","authors":"Rayane Benhenneda, Thierry Brouard, Ramy Samargandi, Christophe Charousset, Julien Berhouet","doi":"10.1016/j.otsr.2026.104933","DOIUrl":"10.1016/j.otsr.2026.104933","url":null,"abstract":"<p><strong>Introduction: </strong>The management of the long head of the biceps (LHB) tendon in small rotator cuff tears remains controversial, particularly when the tendon appears macroscopically healthy. While prophylactic tenotomy or tenodesis is often recommended for pathological LHB, the decision-making process for an apparently normal LHB remains unclear. This study aimed to develop and evaluate an AI-based model for predicting postoperative outcomes in patients with small rotator cuff tears and a seemingly healthy LHB, assisting in the decision between preservation and tenotomy.</p><p><strong>Methods: </strong>This was a prospective, multicenter, single-blind study including 199 patients with small rotator cuff tears. Preoperative clinical, imaging, and arthroscopic data were collected. A deep learning model, integrating a convolutional neural network (CNN) for arthroscopic image analysis and a multilayer perceptron (MLP) for clinical and imaging data, was developed to predict the Constant score at 24 months follow-up. The model's predictions were compared with traditional statistical analyses, and subgroup analyses were performed on patients with a preserved healthy LHB and those with a poor functional outcome, defined by a Constant score <70 at follow-up.</p><p><strong>Results: </strong>The AI model accurately predicted the Constant score at 24 months in 91.4% of cases, with a mean prediction error of 6.04 points. In the \"preserved healthy LHB\" subgroup, the model achieved 93% accuracy, with a mean deviation of 5.45 points. However, in the \"failed healthy LHB preserved\" subgroup, accuracy dropped to 59.2%, with a mean deviation of 18 points. The AI model overestimated outcomes in 8 cases (leading to incorrect preservation of the LHB) and underestimated in 6 cases.</p><p><strong>Conclusion: </strong>An AI model combining arthroscopic imaging and clinical data can predict postoperative Constant scores with high accuracy. However, its performance is limited in predicting failures, particularly in patients with a preserved LHB who later develop poor outcomes. While AI may complement conventional statistical methods in clinical decision-making, further validation with larger datasets and refined variables is necessary to enhance its reliability and clinical relevance.</p><p><strong>Level of evidence: </strong>III; Diagnostic Study.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104933"},"PeriodicalIF":2.7,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149217464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dupuytren's disease: from the first signs to the most advanced stages.","authors":"Nicolas Bigorre, Guy Raimbeau","doi":"10.1016/j.otsr.2026.104924","DOIUrl":"10.1016/j.otsr.2026.104924","url":null,"abstract":"<p><p>Dupuytren's disease is a benign fibroproliferative condition of the palmar fascia, characterized by onset of nodules that develop into cords causing irreducible digital contracture. Prevalence increases with age. It mainly affects males of Northern European origin. Etiopathogenesis is multifactorial, combining genetic predisposition and environmental factors such as alcohol consumption, smoking, microtrauma and diabetes. Management is based on precise clinical assessment, with Tubiana classification and diathesis screening, to adapt therapeutic strategy. In the early stages, monitoring may be combined with medical treatment (radiotherapy, collagenase, corticosteroids, anti-TNF) aimed at slowing progression. In case of functional impairment or significant retraction, several surgical options are available: percutaneous fasciotomy, limited or segmental fasciectomy, dermofasciectomy with skin grafting, or even phalangectomy in severe recurrent cases. This narrative review provides an up-to-date summary of epidemiological, pathophysiological and therapeutic data, emphasizing the importance of a decision-tree that takes account of the progression, diathesis and severity of the contracture.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104924"},"PeriodicalIF":2.7,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149186164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acromial morphology in painful posterior shoulder instability: a case-control radiographic study.","authors":"Mohamad Khaled Ghannam, Gaetan Vanpoulle, Laurent Nové-Josserand, Jérome Garret, Stanislas Gunst","doi":"10.1016/j.otsr.2026.104923","DOIUrl":"10.1016/j.otsr.2026.104923","url":null,"abstract":"<p><strong>Background: </strong>Acromial morphology is a major contributor to posterior shoulder stability, notably in the sagittal plane. Painful posterior shoulder instability (P-PSI) is a rare form of posterior instability characterized by pain without a history of dislocation. The potential relationship between acromial morphology and P-PSI has yet to be studied.</p><p><strong>Hypothesis: </strong>We hypothesized that, as in other forms of PSI, patients with P-PSI would have more horizontally oriented and higher acromions.</p><p><strong>Patients and methods: </strong>A retrospective case-control study was conducted on 27 patients who underwent surgery for P-PSI between January 2008 to March 2023. Patients were compared in terms of radiographic parameters (posterior acromial height (PAH), posterior acromial tilt (PAT), anterior acromial coverage (AAC), posterior acromial coverage (PAC), and critical shoulder angle (CSA)) with 27 age- and sex-matched asymptomatic controls in bivariate and multivariable logistic regression analysis.</p><p><strong>Results: </strong>Patients with P-PSI had significantly larger AAC (mean ± standard deviation, -10.2 ± 13.8 vs -3.3 ± 5.2 °; p =  0.01), PAT (66.2 ± 8.2 vs 58.7 ± 9.0°; p =  0.002) and PAH (23.6 ± 7.9 vs 18.5 ± 7.9 mm; p =  0.02) that control individuals, and borderline significantly smaller PAC (58.9 ± 8.3 vs 63.4 ± 9.3°; p =  0.06). In multivariable logistic regression P-PSI was significantly associated with increased PAT (odds ratio, 1.15; 95% confidence interval, 1.03-1.20 per degree of angle; p = 0.006), but not with higher or lower AAC or PAH.</p><p><strong>Discussion: </strong>This group of patients with P-PSI had significantly higher AAC, PAT and PAH than age-and sex-matched controls, with multivariable analysis indicating that the strongest predictor of P-PSI was PAT. These findings are in keeping with previous results on other forms of posterior instability and with the occurrence of posterior subluxation in eccentric glenohumeral osteoarthritis.</p><p><strong>Level of evidence: </strong>III; Retrospective Case control study.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104923"},"PeriodicalIF":2.7,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149186196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Periprosthetic tibial fracture in robotic-assisted versus conventional medial UKA: in vitro testing and finite element analysis of baseplate footprint.","authors":"Yeseop Park, Michael Redondo, Nirav Mungalpara, Crystal Lin, Hristo Piponov, Lalit Puri, Farid Amirouche","doi":"10.1016/j.otsr.2026.104919","DOIUrl":"10.1016/j.otsr.2026.104919","url":null,"abstract":"<p><strong>Background: </strong>Periprosthetic tibial fracture after unicompartmental knee arthroplasty (UKA) is uncommon but clinically important. Although robotic-assisted UKA may improve the precision of bone preparation and component positioning, whether these technical differences influence fracture resistance or fracture morphology remains unclear. This in vitro study examined whether robotic-assisted medial UKA alters axial load-to-failure compared with conventional UKA, whether fracture morphology differs between the two techniques, and whether implant base footprint influences fracture behavior in complementary finite element (FE) simulations.</p><p><strong>Hypothesis: </strong>Robotic-assisted medial UKA would alter tibial fracture behavior compared with conventional UKA, as reflected by differences in fracture resistance and fracture morphology.</p><p><strong>Methods: </strong>Fourteen fresh-frozen cadaveric specimens underwent medial UKA using either conventional instrumentation (n = 7) or a robotic-assisted workflow (n = 7). After implantation, the tibiae were isolated and subjected to monotonic axial compression at 0.5 mm/s until macroscopic periprosthetic fracture occurred. Load-to-failure, failure load normalized to body weight, and fracture morphology were evaluated. Complementary FE models incorporating implant baseplate sizes 8 and 10 were used to compare load-displacement behavior and crack propagation.</p><p><strong>Results: </strong>Axial load-to-failure did not differ significantly between conventional and robotic-assisted UKA (3712.4 ± 1746.2 N vs. 3988.3 ± 1534.5 N, p = 0.90). Failure load normalized to body weight was also not significantly different between groups (524.42 ± 262.60% vs. 647.24 ± 212.54%, p = 0.71). Different predominant fracture patterns were observed despite similar fracture resistance. Robotic-assisted specimens primarily demonstrated metaphyseal depression-type fractures, whereas fractures in conventional specimens more frequently propagated toward the meta-diaphyseal region. In the FE simulations, peak loads were 3755.36 N for the size-8 baseplate model and 4005.36 N for the size-10 baseplate model, both within the variability observed experimentally, with differences in crack propagation between implant baseplate sizes.</p><p><strong>Discussion: </strong>Robotic-assisted medial UKA did not significantly alter axial fracture resistance compared with conventional UKA, although different predominant fracture morphologies were observed between techniques. Complementary FE analysis showed that implant base footprint influenced simulated load-displacement behavior and crack propagation, suggesting that implant footprint may contribute mechanically to differences in fracture behavior after medial UKA.</p><p><strong>Level of evidence: </strong>V; biomechanical cadaveric and in silico investigation.</p>","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104919"},"PeriodicalIF":2.7,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149169081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beyond the French perspective: the perspective of non-French-speaking international editors on the standing and future of orthopaedics & traumatology: surgery & research.","authors":"Prakash Khanchandani, Sang Hak Lee, Patrick Haubruck, J Donald Hansom, Shota Higashihira","doi":"10.1016/j.otsr.2026.104921","DOIUrl":"10.1016/j.otsr.2026.104921","url":null,"abstract":"","PeriodicalId":54664,"journal":{"name":"Orthopaedics & Traumatology-Surgery & Research","volume":" ","pages":"104921"},"PeriodicalIF":2.7,"publicationDate":"2026-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149169076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}