Arthroplasty Today最新文献

{"title":"Robotic Arm-assisted Augment Preparation (RAAP-Technique) During Total Knee Arthroplasty","authors":"Narayan Hulse FRCS (Tr&Orth), MCh, MS, DNB","doi":"10.1016/j.artd.2025.101725","DOIUrl":"10.1016/j.artd.2025.101725","url":null,"abstract":"<div><div>Modular metal augments are commonly used to reconstruct bony defects during complex primary and revision total knee arthroplasties. The slot for placing an augment is usually prepared using an intramedullary jig and conventional instruments, even during robotically assisted total knee arthroplasty. We report a robotic arm–assisted augment-preparation (RAAP) technique to reconstruct uncontained bony defects using modular metal augments. In this technique, a saw-based robotic arm is utilized to precisely resect the base of the bony defect to accommodate the modular metal augment of appropriate size. The method described in this study avoids the need for conventional revision instrumentation to perform this part of the surgery. Surgery can be completed without removing the robotic array pins. Hence, the robotic system can be retained until the end of the surgery, enabling the monitoring of the final alignment robotically, even during and after the polymerization of the cement. A short case series utilizing this method is also presented.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101725"},"PeriodicalIF":1.5,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167465","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":"Total Hip Arthroplasty vs Hip Resurfacing in Patients Over 65: A Propensity Score–Matched Comparison of Patient-Reported Outcomes","authors":"Zachary Wong BS ,&nbsp;Anand Saluja BA ,&nbsp;Louis Andrew Jordan MS ,&nbsp;Jonathan Spaan MS ,&nbsp;Edwin Su MD","doi":"10.1016/j.artd.2025.101721","DOIUrl":"10.1016/j.artd.2025.101721","url":null,"abstract":"<div><h3>Background</h3><div>Hip-resurfacing arthroplasty (HRA) has grown in popularity as an alternative to total hip arthroplasty (THA) but is primarily utilized and indicated in younger patients with sufficient bone stock and aspirations of returning to higher level of physical activity. While the mechanical structure of HRA implants allows for sparing of the femoral neck and more anatomical weight-bearing distribution, questions surround its viability in older patients, specifically those aged 65 years or older. We undertook this study to compare the results of HRA vs THA in a population of older patients, with specific focus on patient-reported outcome measures.</div></div><div><h3>Methods</h3><div>A retrospective, propensity-matched study was conducted on patients aged 65 years or older who underwent either HRA or THA via posterior approach. Patients were matched in a 1:1 ratio based on age, body mass index, and race. Patient-reported outcome measures, including Hip Disability and Osteoarthritis Outcome Score Joint Replacement, Lower Extremity Activity Scale, Visual Analog Scale pain scores, and modified Harris Hip Score were compared at preoperative, 6-week, 1-year, and minimum 2-year follow-ups.</div></div><div><h3>Results</h3><div>Seventy patients in each group were included. HRA patients demonstrated significantly higher Hip Disability and Osteoarthritis Outcome Score Joint Replacement and Lower Extremity Activity Scale scores at 1-year and final follow-ups. Visual Analog Scale pain scores were lower, and modified Harris Hip Score was higher for HRA patients at the final follow-up. No revisions were reported in the HRA group while one revision due to infection occurred in the THA group.</div></div><div><h3>Conclusions</h3><div>In carefully selected patients aged 65 years or older, HRA can provide comparable or superior outcomes to THA. However, the decision between HRA and THA should be individualized, considering patient factors and potential risks.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101721"},"PeriodicalIF":1.5,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167466","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":"Racial Disparities in Total Joint Arthroplasty Bundled Payment Data","authors":"Kaitlyn Rodriguez MD, MS ,&nbsp;Bruno Valan BS ,&nbsp;Sara Holleran MPH ,&nbsp;Thorsten Seyler MD, PhD ,&nbsp;Malcolm DeBaun MD ,&nbsp;Christian Pean MD, MS","doi":"10.1016/j.artd.2025.101705","DOIUrl":"10.1016/j.artd.2025.101705","url":null,"abstract":"<div><h3>Background</h3><div>Bundled payment models gained traction in recent years in total joint arthroplasty (TJA) as an alternative to fee-for-service models, aiming to reduce health-care spending by holding providers accountable for quality and costs. While they can enhance care, they may inadvertently exacerbate racial health-care disparities. This study assessed racial disparities in high-cost outlier patients enrolled in the TJA bundled payment model.</div></div><div><h3>Methods</h3><div>A retrospective review included patients enrolled in a Medicare bundled payment plan for TJA from January 1, 2022, to June 30, 2023. High-cost outliers had total adjusted costs 5% or higher than the practice mean. Statistical analysis included Wilcoxon rank sum and <em>Chi</em>-square tests.</div></div><div><h3>Results</h3><div>One hundred seventy patients met the inclusion criteria: 74 underwent total hip arthroplasty and 96 underwent total knee arthroplasty. Of these, 34 identified as Black or African American, 133 as White, 2 as Other, and 1 as American Indian. The median adjusted cost for TJA for Black patients was $16,680 vs $15,720 for White non-Hispanic patients (<em>P</em> = .4). Black race was significantly associated with an increased emergency department return or hospital readmission (<em>P</em> = .013).</div></div><div><h3>Conclusions</h3><div>Race was not associated with high-cost outliers but was linked to higher emergency department return and readmission rates. No significant difference in total adjusted cost was found between Black and White patients, though costs trended higher in the Black patients. Highlighting racial disparities in bundled payment models can help health-care stakeholders strive toward equity. Further research with larger populations is necessary to examine whether these models widen racial disparities in TJA.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101705"},"PeriodicalIF":1.5,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138617","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":"Criteria-Based Periprosthetic Joint Infection Definitions: Understanding the Disconnect Between Research and Practice","authors":"Carl Deirmengian MD","doi":"10.1016/j.artd.2025.101720","DOIUrl":"10.1016/j.artd.2025.101720","url":null,"abstract":"","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101720"},"PeriodicalIF":1.5,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138618","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":"Local Infiltration Anesthesia in Total Hip Arthroplasty: A Randomized Controlled Trial","authors":"Arnau Verdaguer-Figuerola MD ,&nbsp;Vito Andriola MD ,&nbsp;Albert Soler-Cano MD ,&nbsp;Anna Alavedra-Massana MD ,&nbsp;Alejandro Carballo MD, PhD ,&nbsp;Marc Tey-Pons MD, PhD","doi":"10.1016/j.artd.2025.101692","DOIUrl":"10.1016/j.artd.2025.101692","url":null,"abstract":"<div><h3>Background</h3><div>Total hip arthroplasty (THA) is a cost-effective solution for osteoarthritis, but it is often associated with postoperative pain that hinders early mobilization and rehabilitation. Local infiltration analgesia (LIA) has emerged as a potential strategy to reduce pain and speed recovery in THA patients. However, the efficacy of LIA in THA remains controversial, with conflicting evidence regarding its impact on pain management, length of hospital stays, and other outcomes. The aim of this study was to evaluate the efficacy of LIA in pain management after THA.</div></div><div><h3>Methods</h3><div>A blinded randomized controlled trial was conducted in 108 patients undergoing THA at a single center. Patients were randomized to receive either LIA or non-LIA during surgery according to an accepted protocol. Surgical procedures were standardized, and outcomes including pain, blood loss, length of hospital stay, functional outcomes, and patient satisfaction were assessed.</div></div><div><h3>Results</h3><div>No significant differences were observed between the LIA group and the control group in pain scores at 24 and 48 hours postoperatively, blood loss, length of hospital stay, or functional outcomes at 3 and 6 months. Patient satisfaction was similar between groups. There were no major complications.</div></div><div><h3>Conclusions</h3><div>The use of LIA did not improve pain management, hospital stay, blood loss, functional outcomes at 3 and 6 months postoperatively or patient satisfaction at 3 and 12 months after primary THA.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101692"},"PeriodicalIF":1.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134376","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":"A Collaborative Multimodal Pain Management Pathway Reduces Opiate Consumption After Total Hip and Knee Arthroplasty","authors":"Mahmoud Khellah BS,&nbsp;Thomas Huff MD,&nbsp;Kathryn Schabel MD,&nbsp;Jessica Foerster BS,&nbsp;Leah Esposito MD,&nbsp;Megan Rushkin MPH,&nbsp;Ryland Kagan MD","doi":"10.1016/j.artd.2025.101716","DOIUrl":"10.1016/j.artd.2025.101716","url":null,"abstract":"<div><h3>Background</h3><div>A collaborative effort with pharmacy, nursing and surgeons developed a multimodal pain management protocol for total hip and knee arthroplasty. This investigation aims to evaluate the effectiveness in reducing opiate consumption.</div></div><div><h3>Methods</h3><div>Retrospective cohort study comparing 455 total hip and knee arthroplasty patients. We compared the first 206 multimodal pain management protocol and 249 standard-of-care pathway patients from January 2017 to March 2020. Primary outcome was postoperative morphine milligram equivalents (MMEs) per 24 hours. Secondary outcomes included total MME at discharge and total MME in the first 6 weeks following discharge.</div></div><div><h3>Results</h3><div>Postoperative MME per 24 hours was lower in the multimodal pain management protocol group 57.0 (30.5, 94.3) median (interquartile range), compared with the standard of care group 84.7 (50.4, 139.6), <em>P</em> &lt; .001. MME prescribed at discharge was reduced in the multimodal pain management group 300 (224, 450) compared to the standard of care group 525 (400, 750), <em>P</em> &lt; .001. MME prescribed 6 weeks following discharge was reduced in the multimodal pain management group 150 (0, 590.6) compared to the standard of care group 400 (0, 1050), <em>P</em> = .01. Additionally, the length of stay was reduced in the multimodal group, <em>P</em> = .01, with similar postoperative pain scores across groups.</div></div><div><h3>Conclusions</h3><div>Our collaborative multimodal pain management pathway reduced opiate consumption for patients undergoing total hip and knee arthroplasty with a reduction in LOS, no difference in pain scores and was effective for patients with various levels of opiate requirements.</div></div><div><h3>Level of Evidence</h3><div>Level III Therapeutic Study: retrospective comparative study</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101716"},"PeriodicalIF":1.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134377","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":"Opioid Use Following Primary Unilateral Total Knee Arthroplasty Varies With Age","authors":"Shah Fahad MD ,&nbsp;Jason A. Bryman MD ,&nbsp;Michael A. Behun MD ,&nbsp;Maryam Salimi MD ,&nbsp;Olivia Vyge MS ,&nbsp;Nina Rosen BS ,&nbsp;Todd Miner MD ,&nbsp;Jason M. Jennings MD, DPT","doi":"10.1016/j.artd.2025.101714","DOIUrl":"10.1016/j.artd.2025.101714","url":null,"abstract":"<div><h3>Background</h3><div>Reducing unused prescribed opioids following arthroplasty procedures remains a challenge. The relationship between opioid consumption and age has seldom been investigated. We hypothesize that older patients consume fewer narcotic medications than younger patients following primary unilateral total knee arthroplasty (TKA).</div></div><div><h3>Methods</h3><div>We retrospectively reviewed 506 primary unilateral TKA patients for perioperative opioid utilization. Patients were stratified by age at the time of operation (40-49, 50-59, 60-69, 70-79, 80+). Narcotic medications used in-house and in the 3 months following discharge were calculated and converted to morphine milligram equivalents (MMEs). Patients receiving an opioid prescription after 90 days postoperatively were classified as persistent opioid users (POUs). The duration of opioid use was calculated for non-POU patients as the time between surgery and their last opioid prescription. Differences in in-patient MME, outpatient MME, and POU were analyzed. The use of psychiatric medications, tetrahydrocannabinol (THC), and nicotine was also documented.</div></div><div><h3>Results</h3><div>Younger patients were more likely to be chronic preoperative opioid users (<em>P</em> = .0074) and more likely to use antidepressants (<em>P</em> &lt; .0001), nicotine (<em>P</em> = .0041), and THC (<em>P</em> &lt; .0001). Younger age groups had the highest percentage of POU, which decreased with each subsequent decade (<em>P</em> = .0079). Younger patients also had an increased duration of opioid use (<em>P</em> &lt; .0001) and total outpatient MME (<em>P</em> &lt; .0001) within 3 months postoperatively.</div></div><div><h3>Conclusions</h3><div>Younger patients demonstrated higher postoperative opioid use following primary TKA; however, this was likely influenced by confounding factors such as preoperative opioid use, nicotine, THC, and antidepressant use. While age alone may not independently predict increased opioid consumption, these findings highlight the importance of identifying and managing modifiable risk factors to optimize pain control. Further research with larger cohorts is needed to better isolate the impact of age.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101714"},"PeriodicalIF":1.5,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124391","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":"Differences in Perioperative Outcomes Between Conversion Total Hip Arthroplasty After Previous Proximal Femur Fracture and Primary Total Hip Arthroplasty","authors":"Brook Biniam BSc ,&nbsp;Jonathan Bourget-Murray MD ,&nbsp;Paul Beaulé MD ,&nbsp;Paul Kim MD ,&nbsp;Wade Gofton MD ,&nbsp;George Grammatopoulos MBBS, DPhil","doi":"10.1016/j.artd.2025.101715","DOIUrl":"10.1016/j.artd.2025.101715","url":null,"abstract":"<div><h3>Background</h3><div>This study compares outcomes between conversion total hip arthroplasty (THA) after proximal femur fracture (PFF) fixation and primary THA for osteoarthritis and examines whether fracture type affects results.</div></div><div><h3>Methods</h3><div>This is a retrospective review of prospectively collected data from a single academic center. Eighty-seven consecutive patients underwent conversion THA following surgical fixation of a PFF with a minimum 2-year follow-up. These patients were matched 1:1 with patients who underwent a primary THA for osteoarthritis, by the same arthroplasty surgeons, using propensity score technique. Outcomes measures included length of stay, complications, reoperation rates, and Oxford Hip Score (OHS). Subgroup analysis involved comparing outcome measures between patients who required conversion THA following an intracapsular and extracapsular PFF.</div></div><div><h3>Results</h3><div>The mean follow-up was 5.6 years (range, 2.3-13.1). Patients in the conversion THA group required longer length of stay (8.1 vs 1.4 days, <em>P</em> &lt; .001). There was no difference in complication rate (12.6% vs 16.1%, <em>P</em> = .491), reoperative rate (12.6% vs 5.7%, <em>P</em> = .243), or OHS (40.1 vs 37.2; <em>P</em> = .052) at final follow-up. There was no difference in outcomes between controls and conversion THA for a previous intracapsular PFF. Reoperation rate was significantly higher (18.2% vs 5.7%, <em>P</em> = .039) and OHS significantly lower (32.3 vs 40.0, <em>P</em> &lt; .001) for conversion THA following extracapsular PFF.</div></div><div><h3>Conclusions</h3><div>Conversion THA after extracapsular PPF is associated with higher reoperation rates and poorer functional outcomes than primary THA for osteoarthritis. In contract, intracapsular PPF show comparable results, underscoring the need to consider fracture type in treatment planning.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101715"},"PeriodicalIF":1.5,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130961","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":"Does Capsular Repair in Anterior Total Hip Arthroplasty Reduce the Incidence of Iliopsoas Tendonitis?","authors":"James M. Puleo DO,&nbsp;Kyaw Nyi-Rein BS,&nbsp;Randeep S. Chana BS,&nbsp;Jared T. Roberts MD","doi":"10.1016/j.artd.2025.101680","DOIUrl":"10.1016/j.artd.2025.101680","url":null,"abstract":"<div><h3>Background</h3><div>Total hip arthroplasty (THA) is one of the most popular and successful operations in the United States. One of the known complications of THA is iliopsoas tendonitis (ITS), which is seen in 4.5% of all THAs. ITS can lead to extreme discomfort for the patient, requiring multiple interventions, with the most severe being revision of arthroplasty components. Thus, ITS is an important complication to prevent. This study looked to see if repairing the hip capsule after direct anterior approach (DAA) to the hip played a role in ITS development.</div></div><div><h3>Methods</h3><div>This was a retrospective study comparing the incidence of ITS symptoms for 5 different surgeons with the goal to further explore whether complete capsulectomy during DAA increases the incidence of ITS when compared to capsular repair. Telephone interviews and retrospective chart review were used to identify symptoms consistent with a diagnosis of ITS.</div></div><div><h3>Results</h3><div>Two hundred thirty-seven patients were studied: 187 in the DAA group, with 101 receiving capsular repair and 86 with capsulectomy; and then 50 patients received a posterior hip approach, and this was used as a control group. Overall, there was no significant difference in symptom incidence (9.9% vs 10.5%) between the capsular repair and capsulectomy groups. When analyzed for each surgeon individually, there were also no statistically significant differences.</div></div><div><h3>Conclusions</h3><div>There is no statistically significant difference in ITS incidence between patients receiving a direct anterior THA with capsulectomy vs those receiving a direct anterior THA with a capsular repair.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101680"},"PeriodicalIF":1.5,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116483","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":"Influence of Femoral Component Flexion on Outcomes After Primary Total Knee Arthroplasty","authors":"Praharsha Mulpur MBBS, DNB (Ortho),&nbsp;Tarun Jayakumar MBBS, MS (Ortho),&nbsp;Mudidana Prudhvi MBBS, MS (Ortho),&nbsp;Krishna Raj Khanal MBBS, MS (Ortho),&nbsp;Kushal Hippalgaonkar MBBS, DNB (Ortho),&nbsp;A.V. Gurava Reddy MBBS, D.Ortho, DNB (Ortho), FRCS, MCh (Ortho)","doi":"10.1016/j.artd.2025.101718","DOIUrl":"10.1016/j.artd.2025.101718","url":null,"abstract":"<div><h3>Background</h3><div>Total knee arthroplasty (TKA) improves pain relief and function in end-stage arthritis. While coronal alignment has been well studied, the impact of femoral component flexion in the sagittal plane on outcomes remains underexplored. This study examines the effect of femoral component flexion on patellofemoral outcomes, using the Kujala anterior knee pain scale, and overall functional results after robotic-assisted TKA.</div></div><div><h3>Methods</h3><div>A retrospective review was conducted on 285 patients who underwent primary robotic-assisted TKA between January 2022 and January 2023. Femoral component flexion was classified as low (0°-2.5°), medium (2.6°-5.5°), and high (5.6°-8°). Outcomes were assessed preoperatively and 12 months postoperatively using the Kujala score, Oxford Knee Score (OKS), and Knee Society Score (KSS). Statistical analysis included analysis of variance for comparing groups and regression analysis to evaluate the impact of flexion on outcomes.</div></div><div><h3>Results</h3><div>A total of 57, 108, and 120 patients were categorized into low, medium, and high flexion groups, respectively. Kujala scores were significantly higher in the low flexion group (73.89 ± 12.68) compared to medium (63.08 ± 7.07) and high groups (63.12 ± 6.86, <em>P</em> &lt; .0001). Each additional degree of femoral flexion resulted in a 1.34-point decrease in Kujala score (<em>P</em> &lt; .0001). Postoperatively, the OKS and KSS improved significantly in all groups, with no statistically significant difference across flexion groups. Patient satisfaction was comparable across groups, with no significant difference.</div></div><div><h3>Conclusions</h3><div>Increased femoral component flexion was associated with poorer patellofemoral outcomes based on the Kujala score. However, the overall patient-reported functional outcome, as measured by the OKS and KSS, did not show a correlation with the flexion of the femoral component.</div></div>","PeriodicalId":37940,"journal":{"name":"Arthroplasty Today","volume":"33 ","pages":"Article 101718"},"PeriodicalIF":1.5,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107776","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}