SICOT-J最新文献

{"title":"An increase in the medial proximal tibial angle of 95° or greater after opening wedge high tibial osteotomy does not necessarily lead to excessive knee joint line obliquity of 5° or greater.","authors":"Yuta Hizume, Ken Kumagai, Tomotaka Akamatsu, Shuntaro Nejima, Yusuke Inoue, Hyonmin Choe, Hiroyuki Ike, Naomi Kobayashi, Yutaka Inaba","doi":"10.1051/sicotj/2026028","DOIUrl":"10.1051/sicotj/2026028","url":null,"abstract":"<p><strong>Introduction: </strong>The relationship between medial proximal tibial angle (MPTA) overcorrection and knee joint line obliquity (KJLO) after opening wedge high tibial osteotomy (OWHTO) remains controversial. Though excessive valgus correction (MPTA ≥ 95°) has been associated with abnormal joint line inclination, the extent to which this affects postoperative alignment and whether overcorrection necessarily results in excessive KJLO (≥5°), which has been associated with increased shear stress on the articular cartilage, is unclear.</p><p><strong>Methods: </strong>A total of 300 knees undergoing isolated OWHTO were retrospectively reviewed. Postoperative KJLO and MPTA were measured using full-length standing radiographs. Knees were stratified into MPTA <95° and ≥95° groups. Correlations between postoperative MPTA and KJLO were analyzed, and in the overcorrected (MPTA ≥ 95°) group, logistic regression and receiver-operating characteristic (ROC) curve analyses were performed to identify preoperative predictors of postoperative KJLO ≥ 5°.</p><p><strong>Results: </strong>Postoperative MPTA showed a significant positive correlation with KJLO (r = 0.61, p < 0.001). However, 52.5% of knees with MPTA ≥ 95° maintained KJLO < 5°, indicating that overcorrection does not necessarily cause excessive joint line inclination. Multivariable analysis identified preoperative lateral distal femoral angle (LDFA), knee joint line convergence angle (KJLCA), and ankle joint line obliquity (AJLO) as independent predictors of postoperative KJLO ≥ 5° in knees with MPTA ≥ 95° (p < 0.01). ROC curve analyses showed that AJLO ≥ 5.6°, LDFA ≥ 88.9°, and KJLCA ≥ 4.5° were the cutoff values predicting KJLO ≥ 5°.</p><p><strong>Conclusions: </strong>Although postoperative MPTA correlates with KJLO, more than half of the overcorrected cases maintained acceptable joint line inclination. Preoperative AJLO, LDFA, and KJLCA are key parameters for predicting postoperative KJLO ≥ 5° in knees with MPTA ≥ 95°, highlighting the importance of comprehensive preoperative alignment assessment when planning OWHTO.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"29"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13186526/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147976383","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":"Floating knees: variables affecting bone union and functional outcomes: a retrospective study of 72 cases.","authors":"Yasmine Salese, Matthieu Cotte, Thibault Druel, Frederic Rongieras, Antoine Bertani, Anthony Viste, Bertrand Boyer","doi":"10.1051/sicotj/2026033","DOIUrl":"10.1051/sicotj/2026033","url":null,"abstract":"<p><strong>Introduction: </strong>Floating knee involves concomitant and ipsilateral fractures of the femur and tibia, sometimes associated with a patellar fracture. Complications are common, and functional outcomes are often poor. This study aimed to evaluate bone healing and to identify factors influencing nonunion and functional results.</p><p><strong>Methods: </strong>This retrospective study included 72 knees, with a mean follow-up of 4.5 years. The primary outcome was bone union. Neurological, vascular and meniscoligamentous injuries were analyzed. Follow-up parameters were clinical, radiological and functional, including the Karlström and Olerud score.</p><p><strong>Results: </strong>At least one fracture was open in 69% of cases. Mean time to union was 10.5 months for the femur, 7.5 months for the tibia, and 4.4 months for the patella. Nonunion occurred in 68% of femoral fractures, 57% of tibial fractures, and 42% of patellar fractures. Open fractures and tibial vascular injuries were significant predictors of nonunion. Meniscoligamentous injuries were diagnosed in 32% of cases and were more frequent with increasing Ran stage (p = 0.004). Surgical site infection occurred in 30.6% of cases and was significantly associated with open fractures (p < 0.001). Functional outcomes worsened with increasing Ran stage, meniscoligamentous injuries, open fractures, and infection.</p><p><strong>Conclusion: </strong>Floating knee injuries are characterized by prolonged healing, high rates of nonunion and infection, and limited functional outcomes.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"38"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13274256/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148266597","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":"Knotless suture anchor fixation of Hahn-Steinthal fractures of the capitellum: A technical note with preliminary clinical outcomes.","authors":"Michał Szufnara, Maciej Ciesielski, Błażej Wójtowicz, Jan Poszepczyński, Marcin Domżalski, Jędrzej Lesman","doi":"10.1051/sicotj/2026035","DOIUrl":"10.1051/sicotj/2026035","url":null,"abstract":"<p><strong>Background: </strong>Hahn-Steinthal fractures are rare osteochondral injuries of the humeral capitellum that primarily affect young and active patients. Although several fixation techniques have been described, most rely on metallic implants or knot-tying constructs that may increase intra-articular bulk and the risk of cartilage damage. The use of knotless suture anchor fixation for this specific fracture pattern has not yet been specifically described. To our knowledge, this study represents the first report describing knotless suture anchor fixation specifically for Hahn-Steinthal fractures of the capitellum.</p><p><strong>Methods: </strong>This study describes an open reduction and knotless suture anchor fixation technique for Hahn-Steinthal fractures of the capitellum and reports early clinical outcomes in a consecutive series of five patients treated in 2025. Functional outcomes were assessed using the Disabilities of the Arm, Shoulder, and Hand (DASH) score, while pain intensity was evaluated using the Visual Analog Scale (VAS). Elbow range of motion (ROM) and radiographic fracture healing were also assessed during follow-up. Patients were followed for 12 weeks postoperatively.</p><p><strong>Results: </strong>The cohort consisted of five patients (three men and two women) with a mean age of 37 years (SD 3.5). All fractures achieved radiographic union without secondary displacement. In addition, computed tomography performed at 3 months postoperatively confirmed osseous union and restoration of articular congruity in the index case. The mean DASH score improved from 62 preoperatively to 43 at 2 weeks, 31 at 6 weeks, and 21 at 12 weeks postoperatively. Mean VAS scores decreased from 8 preoperatively to 5 at 2 weeks, 4 at 6 weeks, and 3 at 12 weeks. The mean flexion-extension arc improved from 48° (SD 5.5) preoperatively to 110° (SD 6.7) at final follow-up. No intraoperative or postoperative complications were observed during the 12-week follow-up period.</p><p><strong>Conclusions: </strong>Open reduction followed by knotless suture anchor fixation represents a technically feasible technique associated with encouraging early clinical and radiological outcomes in this preliminary case series. The absence of intra-articular metal hardware may reduce the risk of cartilage damage while allowing stable fixation of small osteochondral fragments and early functional recovery.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"35"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13218650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148057541","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":"Same patient, same total knee arthroplasty, different outcomes? A pilot study comparing conventional vs. OMNIBotics Robotic-Assisted HLS Kneetec^TM (Corin^®).","authors":"Galdéric Roblot, Marie Moret, Quentin Seguret, Sofiane Taouli, Bassel Al Hassoun, Olivier Roux, Patrice Mertl, Cecile Laterza, Mike Raimi","doi":"10.1051/sicotj/2026057","DOIUrl":"10.1051/sicotj/2026057","url":null,"abstract":"<p><strong>Introduction: </strong>Total knee arthroplasty (TKA) is a well-established treatment for end-stage knee osteoarthritis. Robotic-assisted TKA (RA-TKA) has emerged over the past decade, enabling patient-specific implantation, precise bone cuts, and intraoperative control of gap balance and alignment. The HLS Kneetec^TM is a third condyle posterior stabilized TKA, initially designed for implantation using conventional manual instrumentation (C-TKA), and intended for use with an adjusted mechanical alignment. It can now also be implanted with robotic assistance. This pilot study aimed to evaluate the association between RA-TKA versus C-TKA and clinical outcomes in patients with bilateral knee osteoarthritis.</p><p><strong>Materials and methods: </strong>This was a retrospective cohort of patients operated on by primary RA-TKA in a second osteoarthritic knee after contralateral C-TKA. Twenty-two patients constituted their own control group (44 knees). Mean age was 71.9 ± 7.4 years. The mean time between the two procedures was 22 ± 19 months. Primary outcomes measured were limb alignment (hip-knee-ankle (HKA)), range of motion (ROM), and Forgotten Joint Score (FJS) at one year postoperatively. Secondary outcomes included operating time, hospital stay, incision length, blood loss, and radiographic evaluation (femoral mechanical angle (FMA), tibial mechanical angle (TMA), tibial component slope angle (TSA), patellar tilt angle (PTA), and femoral axial rotation angle (FARA)).</p><p><strong>Results: </strong>RA-TKA was associated with an HKA angle significantly closer to the target (177.9° vs. 175.3°, p = 0.012), with higher flexion (+7°, p = 0.032) and a higher FJS (+13.9 points, p < 0.001). Operating time was longer in the RA-TKA group (+19.5 min, p = 0.004), while hospital stay, blood loss, and incision length did not differ significantly between groups. Radiographically, RA-TKA was associated with reduced femoral valgus (FMA -1.3°, p = 0.001), with no significant differences in TMA or TSA. Patellar tilt was similar, whereas femoral external rotation was increased with RA-TKA (+1.1°, p = 0.0006).</p><p><strong>Conclusion: </strong>In this pilot study, RA-TKA was associated with superior frontal alignment and better patient-reported functional outcomes compared to C-TKA. However, given the inherent temporal confounding of the bilateral sequential design and the small sample size, these findings should be interpreted with caution. Further prospective, adequately powered studies are warranted to confirm these results.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"51"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13533458/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148876179","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":"Long versus short cephalomedullary femoral nail for treatment of unstable intertrochanteric fractures: A single-blinded randomized controlled study.","authors":"Abdelrahman Amir AbouelEla, Haytham Abdel-Azim, Ahmed Sayed Kotb","doi":"10.1051/sicotj/2025065","DOIUrl":"10.1051/sicotj/2025065","url":null,"abstract":"<p><strong>Background: </strong>ITF are extracapsular proximal femoral fractures that occur in both younger and older populations, with a higher prevalence among females. They account for most hip fractures, reaching 44.1%. The Elderly are at risk with an increased first-year mortality risk reaching up to 30%. This research aimed to compare the functional outcomes, effectiveness, and safety profile of long as opposed to short cephalomedullary nails (CMNs) in the management of unstable ITF in elderly individuals aged >60 years.</p><p><strong>Methods: </strong>This single-blinded randomized controlled research was carried out on 30 participants aged >60 years old, both sexes, with unstable ITF. Participants were categorized into two groups (GPs): GP A: had a long cephalomedullary nail (LCMN), and GP B: had short cephalomedullary nail.</p><p><strong>Results: </strong>Mean hospital stay length, period of surgery, operative blood loss, and the incidence of transfusion requirements were higher in GP A, yet no significant difference was observed. Functional outcomes, union and complication rates were comparable between the two GPs.</p><p><strong>Conclusions: </strong>Irrespective of the length, CMNs are suitable for the treatment of unstable ITF, aiming to achieve early mobility and satisfactory functional outcome. Further large-sampled RCTs need to be conducted comparing both GPs based on more recent CT-based classification systems with osteoporosis considered.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"15"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13082745/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147692845","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":"Medial patellofemoral ligament reconstruction with a synthetic polyester suture tape graft and knotless anchors: Five-year clinical and functional outcomes.","authors":"Wessam Fakhery Ebied, Mohamed Ashry, Mohamed Amr Hemida, Ahmed H Khater, Mohamed H Sobhy, Yahia Haroun","doi":"10.1051/sicotj/2026010","DOIUrl":"10.1051/sicotj/2026010","url":null,"abstract":"<p><strong>Introduction: </strong>Medial patellofemoral ligament (MPFL) reconstruction is a well-established treatment for recurrent lateral patellar dislocations, yielding satisfactory clinical outcomes. Although synthetic materials are not widely used due to limited long-term data, they offer the potential to eliminate donor-site complications and may provide promising results. This study evaluated the five-year clinical and functional outcomes of MPFL reconstruction using suture tape, hypothesising that it is a safe alternative to traditional grafts.</p><p><strong>Methods: </strong>Thirty patients aged 20 - 45 years with recurrent lateral patellar dislocations were treated between 2017 and 2020. Exclusion criteria included patellofemoral joint pathology, high-grade trochlear dysplasia, patella alta, neuromuscular disorders, or significant lower limb malalignment requiring correction. All patients underwent MPFL reconstruction using suture tape, placed in the superomedial half of the patella and fixed to the femoral footprint using a knotless anchor. The vastus medialis obliquus insertion was advanced laterally and distally. Preoperative assessments included clinical examinations, knee radiographs, alignment views, TT-TG measurements via CT scans, and MRIs. Patients were evaluated using the Kujala scale, International Knee Documentation Committee (IKDC) score, Crosby and Insall grading system, and Lysholm score.</p><p><strong>Results: </strong>At the 5-year follow-up, all patients had resumed their daily activities without recurrence of dislocation. The mean Kujala score improved from 65.23 to 93.60 (P < 0.001), with significant increases also observed in IKDC and Lysholm scores (P < 0.001). According to the Crosby/Insall grading system, 24 patients were rated as \"excellent\", and six patients were rated as 'good'. The mean knee extension was -5°, and flexion was 140° at the final follow-up.</p><p><strong>Conclusion: </strong>MPFL reconstruction using suture tape with knotless anchors, combined with careful patient selection, appears to be a safe and effective option, demonstrating satisfactory five-year clinical outcomes and no recurrence of instability. However, this study was limited by its relatively small sample size and retrospective design.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"14"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13082744/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147692872","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":"Effectiveness of internal fixation versus arthrodesis on posttraumatic metatarsal-cuneiform joint dislocation: A systematic review and meta-analysis.","authors":"Rudiansyah Harahap, Ersa Agriana Novitri, Erviannisa Destrinandia Harahap","doi":"10.1051/sicotj/2026041","DOIUrl":"https://doi.org/10.1051/sicotj/2026041","url":null,"abstract":"<p><strong>Background: </strong>The metatarsal-cuneiform joint, part of the Lisfranc complex, is essential for midfoot stability, load distribution, and gait mechanics. Injuries, often from high-energy trauma such as traffic accidents or falls, can lead to chronic instability, pain, and functional impairment. Despite accounting for only 0.2% of fractures, Lisfranc injuries are frequently missed in initial diagnosis. Surgical management typically involves internal fixation (IF) to preserve mobility or arthrodesis for permanent stability, yet evidence on their long-term effectiveness remains conflicting, highlighting the need for comparative evaluation.</p><p><strong>Methods: </strong>A systematic review and meta-analysis were conducted according to PRISMA guidelines. PubMed, Scopus, Medline, and Cochrane Library were searched for studies published from January 2015 to June 2025. Ten studies met the inclusion criteria, comprising 441 patients (284 IF, 157 arthrodesis). Primary outcomes were the American Orthopaedic Foot and Ankle Society (AOFAS) score and Visual Analog Scale (VAS) pain score; secondary outcomes included recovery time and reoperation rate. Data were pooled using mean differences (MD) and percentages with corresponding p-values.</p><p><strong>Results: </strong>Arthrodesis yielded significantly higher AOFAS scores compared with IF (85.40 ± 5.51 vs 83.96 ± 5.67; MD = +1.44; p = 0.001) and lower VAS pain scores (1.31 ± 1.2 vs 2.56 ± 1.5; MD = -1.26; p = 0.038). Mean recovery time was shorter in the arthrodesis group (14.23 ± 4.76 weeks) versus IF (16.34 ± 7.81 weeks; MD = -2.11 weeks; p = 0.042). Reoperation rates were significantly lower with arthrodesis (13% vs 30.48%; p = 0.031).</p><p><strong>Conclusions: </strong>Arthrodesis offers superior functional recovery, pain relief, faster return to ambulation, and fewer reoperations than IF in posttraumatic Lisfranc injuries. Surgical choice should be individualized - arthrodesis is recommended for severe instability requiring maximal stability, while IF may be appropriate for younger or athletic patients prioritizing joint mobility.</p><p><strong>Level of evidence: </strong>Level I, systematic review and meta-analysis.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"49"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13488174/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148799276","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":"Pronator quadratus-sparing volar plating of distal radius fractures: A prospective study.","authors":"Ahmed Nouh, Mohammad H Amer, Hassan Magdy El-Barbary, Ahmed Al-Feeshawy, Mohamed Abdel-Wahed","doi":"10.1051/sicotj/2026036","DOIUrl":"10.1051/sicotj/2026036","url":null,"abstract":"<p><strong>Purpose: </strong>Volar locked plates for the distal radius fractures (DRFs) are applied through the Henry approach, and its modification entails a routine step to disinsert the pronator quadratus from its radial and distal attachments. This muscle insertion is mostly fleshy with minimal tendinous tissue, and surgeons find it difficult to reattach at the end of the surgery, the hardware comes in direct contact with the flexor tendons.</p><p><strong>Methods: </strong>The study was performed as a single-center prospective case series to investigate the possibility of preserving the pronator quadratus and, at the same time, achieving good reduction. Out of 73 patients enrolled in the study, the pronator quadratus was successfully spared in 60 patients. The quality of reduction and fixation in these patients was assessed functionally and radiologically.</p><p><strong>Results: </strong>Cases showed radiographic union commencing 3 months postoperatively. Twenty-nine cases had to wait for the 6th months follow up radiographs. No case had a nonunion of its fracture. The PQ sparing approach can be shifted to the FCR approach when needed. In our series, the pronator quadratus muscle was taken down in 4 patients, where a satisfactory reduction could not be achieved.</p><p><strong>Conclusion: </strong>PQ sparing approach is readily adopted and can be used for the majority of DRFs, achieving a good functional and radiological outcome. Its use can enhance recovery and reduce hardware-related complications. Nonetheless, reduction should not be compromised, and the PQ sparing can be converted readily to the FCR approach.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"64"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13647995/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149138739","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":"Image-based robotic-assisted patellofemoral arthroplasty for isolated patellofemoral osteoarthritis: Short-term survivorship, clinical and radiographic outcomes.","authors":"Alberto Fogacci, Clément Favroul, Luca Andriollo, Pierre Longlune, Cécile Batailler, Elvire Servien, Sébastien Lustig","doi":"10.1051/sicotj/2026070","DOIUrl":"https://doi.org/10.1051/sicotj/2026070","url":null,"abstract":"<p><strong>Introduction: </strong>Patellofemoral arthroplasty (PFA) is a valuable option for selected patients with isolated patellofemoral osteoarthritis (PFOA), where component positioning and patellar tracking are critical determinants of outcome. Robotic assistance may improve these aspects, but available literature remains limited. This study evaluated early survivorship, complications, and reoperations after image-based robotic-assisted PFA (RA-PFA). Secondary aims were to assess clinical outcomes, return to sport, radiographic patellofemoral parameters, and agreement between planned and final implanted component position.</p><p><strong>Method: </strong>This retrospective single-center study included consecutive patients treated with RA-PFA for isolated PFOA between November 2021 and October 2024, with a minimum clinical and radiographic follow-up of 12 months. Primary outcomes were implant survivorship, reoperation-free survivorship, and postoperative complications. Secondary outcomes included Knee Society Score (KSS), range of motion (ROM), return to sport, radiographic patellofemoral parameters, and MAKO-derived plan-to-execution agreement. Kaplan-Meier analysis was used to assess survival.</p><p><strong>Results: </strong>Thirty patients (35 knees; 5 bilateral cases) were included, with a mean age of 61.3 ± 12.2 years and mean body mass index of 25.3 ± 5.2 kg/m². Most knees had advanced disease (Iwano grade III-IV, 91.4%). Mean follow-up was 15.7 ± 8.5 months. Overall reoperation rate was 8.6% (3/35), including two conversions to TKA. Survivorship free from revision was 96.7% (95% CI 90.2-100.0) at 12 months and 91.6% (95% CI 80.1-100.0) at 24 and 36 months. KSS improved significantly (from 110.7 ± 21.1 to 163.7 ± 22.3; p < 0.001). Median ROM remained 130°. Return to sport was achieved in 78.3% of active patients. Patellar lateralization improved significantly (4.7 ± 3.8 mm to 0.8 ± 1.8 mm; p < 0.001), with a reduction in patellar tilt. Plan-to-execution deviations were minimal, with 100% component size concordance.</p><p><strong>Discussion: </strong>Image-based RA-PFA was associated with encouraging early survivorship, substantial functional gains, preserved knee motion, and improved radiographic patellofemoral alignment at short-term follow-up. However, the specific contribution of robotic assistance cannot be determined in the absence of a conventional control group.</p><p><strong>Level of evidence: </strong>Level IV.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"66"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13661128/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149185223","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":"Analysis of factors affecting acute pain after shoulder arthroscopy: a retrospective clinical study.","authors":"Ziyu Wang, Bin Fang, Lan Wei, Yuanyuan Qi, Chao Gong, Lina Huang","doi":"10.1051/sicotj/2026085","DOIUrl":"10.1051/sicotj/2026085","url":null,"abstract":"<p><strong>Background: </strong>Arthroscopic shoulder surgery is a minimally invasive treatment; however, patients still experience significant postoperative pain. This study aimed to identify factors related to acute pain after shoulder arthroscopy and guide pain management.</p><p><strong>Methods: </strong>This study included 272 patients who underwent shoulder arthroscopic surgery at our hospital between January 2020 and August 2021. Blood samples for apolipoprotein measurement were collected on the day before surgery after an overnight fast. Pain was assessed using the VAS at 24 h after surgery as the primary endpoint. Patients were divided into two groups according to pain levels 24 h after surgery: mild pain (VAS ≤3) and moderate-to-severe pain (VAS > 3). Logistic regression was used to analyze the relationships between postoperative pain and age, sex, BMI, injury type, method of operation, nerve block, and apolipoprotein levels.</p><p><strong>Results: </strong>The majority of patients (71.32%, 194/272) had moderate- to severe postoperative pain. Analysis revealed significant differences between the two groups in surgical method (P = 0.009), injury type (P = 0.042), nerve block administration (P = 0.039), apolipoprotein A-I levels (P = 0.006), and apolipoprotein C (P = 0.046). Logistic regression analysis showed that postoperative pain was correlated with nerve block administration and apolipoprotein A-I levels.</p><p><strong>Conclusion: </strong>The absence of nerve block and elevated apolipoprotein A-I levels were associated with more severe postoperative pain after shoulder arthroscopy. Therefore, the findings suggest that brachial plexus block may reduce postoperative pain. Patients with elevated ApoA-I may benefit from closer monitoring.</p>","PeriodicalId":46378,"journal":{"name":"SICOT-J","volume":"12 ","pages":"68"},"PeriodicalIF":2.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13656747/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170703","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}