Arthroplasty Today最新文献

{"title":"Rural vs Urban Outcomes in Total Knee and Hip Arthroplasty: A Study of Patient-Reported Outcomes and Web-Based Tool Efficacy","authors":"Jeremiah M. Taylor MD,&nbsp;Matthew V. Dipane BA,&nbsp;Adam A. Sassoon MD","doi":"10.1016/j.artd.2025.101885","DOIUrl":"10.1016/j.artd.2025.101885","url":null,"abstract":"<div><h3>Background</h3><div>Rural patients in the United States often face higher tobacco use, obesity rates, and lower health literacy, impacting arthroplasty outcomes. This study investigates whether rural residency is directly associated with poorer patient-reported outcomes (PROs) following total knee (TKA) and total hip arthroplasty (THA). It also evaluates the effectiveness of web-based PRO tools across urban and rural populations. Understanding these relationships is crucial for addressing disparities in care and improving surveillance for rural populations.</div></div><div><h3>Methods</h3><div>From May 2021 to April 2023, TKA and THA patients at our institution were categorized based on their home zip codes, using the 2020 Census Bureau binary urban-rural classification. Web-based PROs were administered via text or email and assessed using the Knee Injury and Osteoarthritis Outcome Score, Joint Replacement; Hip Injury and Osteoarthritis Outcomes Score, Joint Replacement; University of California, Los Angeles Activity Score; Patient-Reported Outcomes Measurement Information System Global Physical and Mental Health Scores; and Forgotten Joint Scores. PROs were recorded preoperatively and at 6 weeks, 3 months, and 1 year postoperatively. Statistical analysis encompassed chi-square and independent samples t-tests.</div></div><div><h3>Results</h3><div>Among 781 THA and 1094 TKA cases, survey response rates (71.9%-83.8%) were consistent across urban and rural groups (all <em>P</em> &gt; .05). PROs were similar across all timepoints, except rural THA patients reported lower Patient-Reported Outcomes Measurement Information System Global Physical and Mental Health scores [(Mental:Urban 54.2 ± 8.5 vs Rural 50.7 ± 10.0, <em>P</em> = .021); (Physical: Urban 52.2 ± 8.6 vs Rural 48.9 ± 10.0, <em>P</em> = .029)] at the 1-year postoperative mark.</div></div><div><h3>Conclusions</h3><div>Rural patients report comparable arthroplasty-specific PROs following TKA and THA, with a similar response rate to web-based tools.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101885"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147554456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Excellent Short-Term Outcomes After Kinematic Alignment, Medial-Pivot Total Knee Arthroplasty for Isolated Patellofemoral Osteoarthritis","authors":"Emma N. Horton BS ,&nbsp;David F. Scott MD","doi":"10.1016/j.artd.2025.101921","DOIUrl":"10.1016/j.artd.2025.101921","url":null,"abstract":"<div><h3>Background</h3><div>The optimal treatment for isolated patellofemoral osteoarthritis (PFOA) remains controversial. Operative management for PFOA includes patellofemoral arthroplasty; however, concerns regarding tibiofemoral disease progression and high revision rates limit its use. Total knee arthroplasty (TKA) is another treatment option, but comparative outcomes between patients with isolated PFOA and those with tibiofemoral osteoarthritis (TFOA) undergoing TKA are not well established. This study compared postoperative outcomes in these 2 populations, hypothesizing that patients with isolated PFOA treated with TKA will achieve similar results to those with TFOA.</div></div><div><h3>Methods</h3><div>A total of 378 consecutive patients with isolated PFOA (n = 17) and TFOA (n = 361) underwent primary unrestricted caliper-verified kinematic alignment TKA with medial-pivot implants. Patients completed the Forgotten Joint Score, Knee Injury and Osteoarthritis Outcome Score (KOOS-JR), and Knee Society Score (KSS) at preoperative, 6-week, 6-month, and 1-year postoperative visits. Extension and flexion were measured at those visits.</div></div><div><h3>Results</h3><div>Patients with TFOA had superior KSS Function and Total Composite at 6 weeks (<em>P</em> = .017 and <em>P</em> = .007, respectively). Patients with PFOA had greater preoperative flexion (<em>P</em> = .006). No significant differences were observed in Forgotten Joint Score, KOOS-JR, KSS B Pain, or extension at any time point (<em>P</em> &gt; .05). All outcome measures equalized between groups at 6 months and 1-year postoperative.</div></div><div><h3>Conclusions</h3><div>Within the limits of the available sample size, patients with isolated PFOA achieved comparable 6-month and 1-year outcomes to those with TFOA following kinematic alignment-TKA with medial-pivot implants, supporting its use as an effective treatment option.</div></div><div><h3>Level of Evidence</h3><div>III.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101921"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145747854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can’t Stop the Music? Musical Hallucinations From Postoperative Tramadol Use: Case Report and Literature Review","authors":"Austin G. Hughes MD,&nbsp;James Pate MD,&nbsp;Jordan Dunson MD,&nbsp;Mark G. Freeman MD","doi":"10.1016/j.artd.2025.101928","DOIUrl":"10.1016/j.artd.2025.101928","url":null,"abstract":"<div><div>Tramadol is an overall safe and increasingly used alternative to traditional opioid medications for pain relief in the acute postoperative period. However, it does have a set of common and rarer, possibly life altering, side effects including severe hallucinations, and more specifically, discrete musical hallucinations. A 79-year-old female status post revision hip arthroplasty was started on Tramadol so that she could stop taking oxycodone. Within 3 days of the initiation of this medication, symptoms of severe musical hallucinations began. The symptoms continued for multiple weeks, were too difficult to assess causation, and resolved within 7 days of the cessation of tramadol use. This case describes a rare adverse effect of Tramadol, musical hallucinations, which led to the patient developing severe anxiety, sleep deprivation, postoperative dissatisfaction, and an increased risk of falls and injury due to fatigue and confusion. Based on this report, the authors recommend that surgeons ensure clinic staff who manage patient calls and messages are familiar with both common and uncommon medication side effects, and that they are trained to discontinue the medication if unusual symptoms arise until appropriate evaluation can be completed.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101928"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Graft Incorporation and Cup Migration in Acetabular Impaction Bone Grafting for Revision Hip Arthroplasty: A Systematic Review and Meta-Analysis of 1093 Hips","authors":"Artsiom Klimko MD ,&nbsp;Octavian Andronic MD, PhD ,&nbsp;Victor Yan Zhe Lu MA MB BChir ,&nbsp;Dominik Kaiser MD ,&nbsp;Dimitris Dimitriou MD ,&nbsp;Armando Hoch MD ,&nbsp;Patrick O. Zingg MD","doi":"10.1016/j.artd.2025.101929","DOIUrl":"10.1016/j.artd.2025.101929","url":null,"abstract":"<div><h3>Background</h3><div>Acetabular impaction bone grafting (IBG) is used to address bone loss in revision total hip arthroplasty (rTHA). We evaluated graft incorporation and cup migration after acetabular IBG in rTHA.</div></div><div><h3>Methods</h3><div>Systematic search of MEDLINE, EMBASE, and Scopus from inception to June 30, 2024 (PROSPERO CRD42024557047). Studies of acetabular IBG in rTHA with ≥12-month follow-up were included. Outcomes were graft incorporation and horizontal (i.e., lateral to medial axis) and vertical cup migration. Prespecified subgroup analyses assessed bone-loss severity, graft type, additional fixation, and age. Random-effects meta-analyses were used; heterogeneity was quantified with I². Risk of bias was assessed with the Methodological Index for Non-Randomized Studies.</div></div><div><h3>Results</h3><div>Nineteen studies (1093 hips) were included; weighted follow-up was 8.0 years (range 2.0-16.9). Pooled graft incorporation was 89% (95% CI [confidence interval] 79-96; I² 85%). Mean lateral migration was 2.4 mm (95% CI 0.53-4.27) and mean superior migration 4.2 mm (95% CI 1.61-6.75); heterogeneity was high (I² 100% for both). Lateral migration was greater in cohorts with ≥5 years’ follow-up than &lt;5 years (3.65 vs 1.16 mm; <em>P</em> = .018). No significant differences in incorporation were detected by bone-loss severity, graft type, or age; however, subgroup analyses were frequently underpowered and exploratory.</div></div><div><h3>Conclusions</h3><div>Acetabular IBG can achieve mid- to long-term graft incorporation of 89%, but estimates are imprecise due to heterogeneous (I² = 85%), predominantly retrospective evidence. Migration occurs—most commonly cranial—and may accrue over time; values often remain within commonly accepted surveillance thresholds but warrant structured radiographic follow-up. Given high heterogeneity, variable outcome definitions, and potential small-study/publication bias, recommendations should be interpreted cautiously.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101929"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Health-Related Social Needs Are Associated With Worse Physical Function, Pain, and Mobility in Hip and Knee Osteoarthritis Patients at Presentation","authors":"Adam D. Winter MS ,&nbsp;Camila L. Hayashi BS ,&nbsp;Luis A. Túa-Vargas MS ,&nbsp;Nicholas Chau ,&nbsp;David H. Gibson MD ,&nbsp;Lee E. Rubin MD ,&nbsp;Ilda B. Molloy MD, MS ,&nbsp;Daniel H. Wiznia MD","doi":"10.1016/j.artd.2025.101871","DOIUrl":"10.1016/j.artd.2025.101871","url":null,"abstract":"<div><h3>Background</h3><div>Health-related social needs (HRSNs) are mandatory reporting measures per the Centers for Medicare &amp; Medicaid Services. We sought to assess the prevalence of HRSNs and associations with clinical presentation among preoperative hip and knee osteoarthritis patients.</div></div><div><h3>Methods</h3><div>This prospective single-institution cross-sectional study assessed HRSNs (living situation, food, transportation, utilities, safety, financial strain, substance use, and mental health); Patient-Reported Outcomes Measurement Information System (PROMIS) Physical Function, Mobility, Pain Interference scores; and demographics (sex, race, education, income, household size, marital status) via in-person interviews in an academic arthroplasty practice. Kellgren-Lawrence Osteoarthritis Score, Charlson Comorbidity Index, and insurance were also determined. Odds of HRSNs by demographics were analyzed using logistic regression and relationship between HRSNs and PROMIS scores was determined by weighted least square linear regression.</div></div><div><h3>Results</h3><div>The study included 253 patients. Prevalences of each HRSN were 15% for living situation, 13% for food insecurity, 11% for transportation, 4% for utilities, 0.4% for safety, 58% for mental health, 31% for substance use, and 27% for financial strain. Black patients and patients on Medicaid had higher HRSN prevalences. PROMIS scores were significantly worse in patients with HRSNs, particularly for living situation, financial strain, and mental health domains (<em>P</em> &lt; .05 for Physical Function, Mobility, and Pain Interference scores in all these domains).</div></div><div><h3>Conclusions</h3><div>HRSNs are significant among hip and knee osteoarthritis patients and disproportionately high for Black and Medicaid patients. Patients with HRSNs presented with significantly worse PROMIS scores across Physical Function, Mobility, and Pain Interference domains, highlighting a healthcare disparity in this population.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101871"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147554446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bridging the Empathy Gap: Why Health Equity Must Matter to All of Us","authors":"Kimberly K. Tucker MD","doi":"10.1016/j.artd.2025.101924","DOIUrl":"10.1016/j.artd.2025.101924","url":null,"abstract":"","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101924"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147554588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined Patellofemoral Arthroplasty With Patellar Realignment: Surgical Technique and Clinical Outcomes in a Retrospective Case Series","authors":"Paul B. Walker MD,&nbsp;Lisa Su MD, MS,&nbsp;Mathangi Sridharan MD,&nbsp;Murray Wong MD, MSc,&nbsp;Matthew Dipane BA,&nbsp;Guillermo Araujo-Espinoza MD,&nbsp;Kristofer J. Jones MD,&nbsp;Adam A. Sassoon MD, MS","doi":"10.1016/j.artd.2025.101951","DOIUrl":"10.1016/j.artd.2025.101951","url":null,"abstract":"<div><h3>Background</h3><div>Isolated patellofemoral joint arthritis with patellar malalignment in young patients presents a unique challenge, as these patients typically wish to avoid early total knee arthroplasty. The purpose of this retrospective case series is to describe a standardized dual-surgeon technique for combined patellofemoral arthroplasty (PFA) with patellar realignment using medial patellofemoral ligament reconstruction or tibial tubercle osteotomy and to evaluate early clinical and patient-reported outcomes.</div></div><div><h3>Methods</h3><div>A retrospective review was conducted on patients who underwent combined PFA and patellar realignment by a fellowship-trained arthroplasty surgeon and fellowship-trained sports surgeon. Outcomes including implant survivorship, functional outcomes, complications, and patient-reported measures (Knee Injury and Osteoarthritis Outcome Score Joint Replacement, Patient Reported Outcomes Measurement Information System (PROMIS), Global Physical Health, PROMIS Global Mental Health, and Forgotten Joint Score) were assessed.</div></div><div><h3>Results</h3><div>Eleven knees in 9 patients were included (55.5% female; median age 41 ± 13.4 years; median body mass index 26 ± 6.2). All knees had isolated patellofemoral arthritis. Nine knees underwent PFA with medial patellofemoral ligament reconstruction for instability or dislocation, while 2 underwent PFA with tibial tubercle osteotomy for patella alta. Two patellae were chronically dislocated, additionally requiring lateral release. Six knees had prior failed stabilizing procedures. The mean operative time was 121 minutes (94–161), with a mean follow-up of 24.0 ± 11.5 months. One patient experienced a periprosthetic patellar fracture at 10 months, followed by a refracture at 14 months, requiring open reduction and internal fixation and extensor mechanism repair. No cases of re-dislocation, maltracking, infections, wound complications, or other medical issues occurred. Knee Injury and Osteoarthritis Outcome Score Joint Replacement scores improved by an average of 14.8 ± 11 points.</div></div><div><h3>Conclusions</h3><div>Combined PFA and patellar realignment surgery can be done efficiently and is associated with improved patient-reported outcomes, with complications limited to a single case of periprosthetic patellar fracture.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101951"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146037995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Divergent Sign: a Case Series Describing a Novel Radiographic Finding of Posteromedial Hip Osteoarthritis","authors":"Jibanananda Satpathy MD ,&nbsp;Laura Giambra PA-C ,&nbsp;Brady Ernst MD ,&nbsp;Brigitte Lieu BA ,&nbsp;John Krumme MD ,&nbsp;Gregory Golladay MD","doi":"10.1016/j.artd.2025.101945","DOIUrl":"10.1016/j.artd.2025.101945","url":null,"abstract":"<div><div>While hip osteoarthritis (OA) is often diagnosed by plain films, posteromedial hip OA is harder to visualize, thus risking underdiagnosis among patients with symptomatic posteromedial hip OA but unremarkable plain hip and pelvis radiographs. The divergent sign, or apparent asymmetric widening of the superolateral joint space on anteroposterior view, may be a useful indicator of posteromedial OA. We present a case series of 19 patients with posteromedial hip OA diagnosable via the divergent sign and confirmed with magnetic resonance imaging and intraoperative findings. Seventeen of these patients underwent total hip arthroplasty with successful outcomes and minimal postoperative complications, while the other 2 elected conservative management. We propose this radiographic sign should prompt clinicians to better evaluate for posteromedial hip OA with advanced imaging to sooner diagnose this condition.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101945"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patellar Clunk Syndrome: A Systematic Review of Risk Factors and Treatment","authors":"Margaret Hedeman BA ,&nbsp;Jacie Lemos BS ,&nbsp;Charles Guerra BS ,&nbsp;Hadley Winslow BS ,&nbsp;Arnav Sharma BS ,&nbsp;William D. Werry MD ,&nbsp;Phil Aurigemma MD ,&nbsp;Brian Samuelsen MD ,&nbsp;Mark J. Lemos MD","doi":"10.1016/j.artd.2025.101936","DOIUrl":"10.1016/j.artd.2025.101936","url":null,"abstract":"<div><h3>Background</h3><div>Patellar Clunk Syndrome (PCS) is a known complication of total knee arthroplasty (TKA). Prior studies have identified multiple risk factors for PCS, including male sex, patellar size, and implant design. Previous literature suggests surgical intervention as the preferred treatment for PCS. No review to date has systematically assessed risk factors and treatment outcomes of PCS.</div></div><div><h3>Methods</h3><div>Following PRISMA protocol, 4 online databases were searched for English language studies published during or after the year 2000 that reported PCS as a primary outcome of TKA and identified (1) risk factors for developing PCS and/or (2) outcomes following treatment. The methodological quality of studies was assessed using the Newcastle-Ottawa Scale (NOS). The following outcomes were collected and reported: demographic information, overall PCS complication rate, risk factors, treatment plans, and treatment outcomes.</div></div><div><h3>Results</h3><div>The initial search yielded 699 articles. A total of 316 articles underwent full-text review; 24 articles were ultimately included and analyzed. Nineteen articles assessed risk factors, 2 assessed treatment outcomes, and 3 assessed both. Of the articles assessing risk factors, 9 (41%) reported specific implants, 3 (16%) reported mobile-bearing design, and 2 (9%) reported posterior stabilized (PS) design. Additional risk factors identified include retained patella, smaller patellar thickness, and higher postoperative knee flexion. Five articles assessed arthroscopic treatment for PCS, and all demonstrated satisfactory outcomes.</div></div><div><h3>Conclusions</h3><div>Risk factors for developing PCS include implant design, implant type, retained patella, patellar thickness, and higher postoperative flexion. Other risk factors were not supported by multiple studies. Arthroscopic treatment has strong evidence for improving functional outcomes in patients with symptomatic PCS.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101936"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145927157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Managing Knee Arthrodesis Conversion to Arthroplasty in a Young Patient: Surgical Strategy, Challenges, and Functional Recovery After 1 Year","authors":"Aurimas Sirka MD, PhD ,&nbsp;Gintare Lukoseviciute MD ,&nbsp;Tomas Kadusauskas MD ,&nbsp;Donatas Daublys PhD ,&nbsp;Aurelijus Domeika PhD ,&nbsp;Rimtautas Gudas PhD ,&nbsp;Augustinas Rimkunas MD","doi":"10.1016/j.artd.2025.101943","DOIUrl":"10.1016/j.artd.2025.101943","url":null,"abstract":"<div><div>Conversion of knee arthrodesis to total knee arthroplasty is a technically demanding procedure, particularly in young patients with a history of trauma and infection. This report outlines the surgical strategy and 1-year functional outcome of a 24-year-old patient who underwent total knee arthroplasty 4 years after knee fusion. Management included soft tissue reconstruction, tibial tubercle osteotomy, gastrocnemius flap coverage, and rotating hinge knee implantation. At 1-year follow-up, the patient showed marked clinical improvement, with improved in KOOS and WOMAC scores, pain relief, and quality of life. Markerless 3D kinematic gait analysis was also performed post-conversion. This report describes key surgical considerations and preoperative work-up for the successful conversion of knee arthrodesis to arthroplasty.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"37 ","pages":"Article 101943"},"PeriodicalIF":2.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145978536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}