Journal of Knee Surgery最新文献

{"title":"Antiseptic Soaking of Tendon Xenografts: A Biomechanical Study on Structural Integrity as a Model for ACL Autografts.","authors":"Fatih Günaydın, Hasan Ceylan, Mahmud Aydin, Osman Görkem Muratoğlu, Ada Özcecelik, Cem Yıldırım, Ergün Bozdağ","doi":"10.1055/a-2716-4573","DOIUrl":"https://doi.org/10.1055/a-2716-4573","url":null,"abstract":"<p><strong>Introduction: </strong>During anterior cruciate ligament (ACL) reconstruction, intraoperative graft contamination or postoperative infection remains a notable clinical concern. While antiseptic solutions are increasingly employed for graft decontamination and infection prophylaxis, the potential impact of these agents on the biomechanical integrity of tendon grafts has not been fully elucidated. This experimental study aimed to evaluate the biomechanical effects of soaking tendon grafts in vancomycin, chlorhexidine, and povidone-iodine solutions.</p><p><strong>Methods: </strong>Fresh bovine deep digital flexor tendons were used to simulate ACL autografts and randomly assigned to four groups (n = 6): 4% chlorhexidine, 10% povidone-iodine, 5 mg/mL vancomycin, and 0.9% isotonic saline (control). After 30-minute soaking, tendons were sutured using a Four Rip-Stop technique and biomechanically tested using a servohydraulic tensile system. Failure load, stiffness, and cyclic elongation were measured. Statistical analysis was performed using Kruskal-Wallis and Mann-Whitney U tests with Bonferroni correction.</p><p><strong>Results: </strong>Vancomycin and chlorhexidine groups exhibited significantly lower cyclic elongation compared to control and povidone-iodine groups. Failure load was also significantly higher in these groups, particularly compared to povidone-iodine, which demonstrated the weakest biomechanical performance. No significant differences in stiffness were observed across groups.</p><p><strong>Conclusion: </strong>Vancomycin and chlorhexidine can be safely used for short-term antiseptic soaking without compromising graft mechanical integrity. In contrast, povidone-iodine may weaken tendon structure. These findings may guide antiseptic use during ACL reconstruction and in managing contaminated tendons in open injuries.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145245489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of mid-term results between the ATTUNE and PFC Sigma Total Knee Arthroplasty systems.","authors":"Thomas Strudwick, James D Sires, Paul Nathaniel Smith, Emma Jackman, Carl Holder, Christopher John Wilson","doi":"10.1055/a-2716-4635","DOIUrl":"https://doi.org/10.1055/a-2716-4635","url":null,"abstract":"","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145245520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Analysis of Implant Survival and Clinical Efficacy between Medial and Lateral Unicompartmental Knee Arthroplasty: A Systematic Review and Meta-Analysis.","authors":"Tao Zhang, Wenwen Li, Dan Wu, Jinghe Ying, Jianlong Chen, Sanjay Rastogi","doi":"10.1055/a-2693-0814","DOIUrl":"10.1055/a-2693-0814","url":null,"abstract":"<p><p>Unicompartmental knee arthroplasty (UKA), encompassing both medial and lateral approaches, facilitates accelerated rehabilitation and enhances patient satisfaction in comparison to total knee arthroplasty (TKA). However, the optimal surgical techniques and implant positioning continue to be topics of ongoing debate. This study compares the clinical efficacy and implant survival rates of medial and lateral UKA to inform clinical decision-making and optimize patient outcomes. A comprehensive literature search was performed across four major electronic databases (PubMed, EMBASE, Scopus, and Cochrane Library), yielding peer-reviewed journal articles that met the inclusion criteria. Statistical analysis involved calculating standardized mean differences (SMDs) and odds ratios (ORs) with corresponding 95% confidence intervals (CIs). Heterogeneity was evaluated using the Cochrane <i>Q</i> test and <i>I</i> ² statistic, with <i>p</i>-values reported accordingly. Data analysis was facilitated using Review Manager (RevMan) version 5.4. This meta-analysis of 15 studies (<i>n</i> = 36,006 UKA patients) found no significant differences in survival rates, postoperative pain, and function scores between medial and lateral UKA. Specifically, the long-term subgroup (>10 years) showed a non-significant higher survival rate for lateral UKA (OR: 0.99, 95% CI: 0.73-1.32, <i>p</i> = 0.92, <i>I</i> ² = 51%), while the short- and mid-term subgroup (<10 years) showed a non-significant higher survival rate for medial UKA (OR: 1.20, 95% CI: 0.96-1.50, <i>p</i> = 0.12, <i>I</i> ² = 73%). Additionally, the pooled SMD revealed no significant differences in postoperative pain (SMD: 0.08, 95% CI: -0.27 to 0.44) and functional scores (SMD: 0.23, 95% CI: -0.05 to 0.51) between the two groups. In conclusion, this systematic review and meta-analysis found no substantial disparities in clinical outcomes, survival rates, functional improvement, or pain alleviation between medial and lateral UKAs, confirming both as viable options.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144975252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revision Total Knee Arthroplasty for Mid-Flexion or Combined Mid-Flexion and Flexion Instability: Survivorship and Outcomes.","authors":"Jordan S Cohen, Praneeth K Thota, Yixuan A Pei, Neil P Sheth","doi":"10.1055/a-2608-0053","DOIUrl":"10.1055/a-2608-0053","url":null,"abstract":"<p><p>As patients place higher demand on their implants, mid-flexion instability is increasingly recognized as a contributor to dissatisfaction after total knee arthroplasty (TKA). However, the outcomes of revision surgery to address mid-flexion instability have not been categorized. The study cohort was composed of 52 patients who underwent revision surgery for mid-flexion or combined flexion and mid-flexion instability by a single surgeon between 2015 and 2022. The mean follow-up duration was 2.76 years. Patient characteristics, implants used, and complications were recorded. Range of motion and patient-reported outcomes (collected using the Knee Injury and Osteoarthritis Outcome Score for Joint Replacement [KOOS Jr.] and EuroQol-5 Dimensions-5 Levels [EQ-5D-5L] questionnaires) were compared before surgery and at final follow-up. Five patients (9.6%) required an additional operation. Causes of reoperations included component loosening, persistent wound drainage, recurrent instability, and arthrofibrosis. KOOS Jr. scores improved from 46 preoperatively to 60 postoperatively (<i>p</i> < 0.01). EQ-5D-5L scores demonstrated a reduction in pain/discomfort and an improvement in the ability to perform usual activities (<i>p</i> < 0.05). A trend was observed toward increased mobility (<i>p</i> = 0.05). The most common 30-day complications were transfusion (11.5%), readmission (11.5%), renal complications including acute kidney injury (9.6%), and wound complications (5.8%). Patients had improvements in maximum flexion and total arc of motion postoperatively (<i>p</i> < 0.05). This study includes the largest cohort of patients undergoing revision for mid-flexion instability and demonstrates that appropriately selected patients can have improved outcomes while maintaining their range of motion.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":"626-631"},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144081607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Presurgical Evaluation by a Health Behavior Psychologist Can Effectively Delineate Patient-Specific Barriers that Impact Treatment Outcomes after Osteochondral Allograft Transplantation.","authors":"Kylee Rucinski, Renee Stucky, Felicia Jones, James P Stannard, Clayton W Nuelle, James L Cook","doi":"10.1055/a-2591-9754","DOIUrl":"10.1055/a-2591-9754","url":null,"abstract":"<p><p>Osteochondral allograft transplantation (OCAT) is an effective treatment option for young, active patients with full-thickness articular cartilage defects, but long-term success is limited by treatment failures often linked to nonadherence to postoperative protocols. Validated methods for preoperative identification of patients at risk for nonadherence and/or poor outcomes following OCAT are limited. This study aimed to characterize the ability of a health behavior psychologist (HBP) to preoperatively delineate patient-specific barriers associated with nonadherence and failure following OCAT. Patients were prospectively enrolled in a lifelong, institutionally approved registry. Patients were eligible for inclusion if they had a preoperative evaluation with an HBP. Demographic, biopsychosocial, patient-reported outcomes surveys, and adherence status were collected. Risk domains (low, medium, high) were assigned by the HBP based on the presence and severity of barriers identified during HBP evaluations. OCAT patients (<i>n</i> = 99) were evaluated and assigned a risk domain: (low-risk [<i>n</i> = 41], medium-risk [<i>n</i> = 44], high-risk [<i>n</i> = 14]). Patients in medium- and high-risk cohorts reported significantly more barriers, including mental health issues, limited social support, and high-demand occupations, compared with low-risk patients. Nonadherence rates were significantly higher in medium- and high-risk cohorts; however, nonadherence was not significantly associated with treatment failure. The low-risk cohort reported better mental health and satisfaction outcomes, whereas medium- and high-risk patients had worse physical health outcomes. Preoperative HBP evaluations effectively identified patient-specific barriers to adherence, enabling targeted interventions to improve OCAT surgery outcomes. Integrating behavioral health support into orthopaedic care may improve adherence, highlighting the need for broader implementation and further studies.Level of Evidence 2, prospective cohort study.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":"595-600"},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144055088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prescription Testosterone Increases the Risk of Reoperation for Infection and All-Cause Reoperation after Primary Total Knee Arthroplasty.","authors":"Gloria Coden, Hannah I Travers, Mikhail Kuznetsov, Jacob Kirsch, James V Bono, Eric L Smith","doi":"10.1055/a-2608-0156","DOIUrl":"10.1055/a-2608-0156","url":null,"abstract":"<p><p>The rate of total knee arthroplasty (TKA) continues to rise, and with it, the need to identify risk factors for reoperation. Additionally, supplemental testosterone use in male patients has increased across the United States. As more patients taking prescription testosterone replacement therapy (TRT) undergo TKA, there is a need to evaluate TRT as it relates to outcomes following TKA. This study aims to evaluate whether the prescription of supplemental testosterone is a risk factor for reoperation and reoperation for infection following TKA. A retrospective cohort study using a nationwide commercial claims database was conducted. About 76,276 male patients who underwent TKA were identified with a 1.9-year mean follow-up. Reoperations and reoperations for infections were identified using the International Classification of Diseases Tenth Edition (ICD-10) and the Current Procedural Terminology (CPT) codes. Patients were matched based on demographic, geographic, and comorbidities data using Mahalanobis nearest neighbor matching. Statistical analysis was conducted on 3,209 male patients prescribed testosterone and 32,090 not prescribed testosterone. Demographic and comorbidities, including age, location of TKA, length of stay, history of diabetes mellitus, hypertension, hyperlipidemia, obesity, smoking, alcohol, and Charlson Comorbidity Index (CCI) score, were similar (<i>p</i> > 0.05) between male patients prescribed testosterone and men who were not. Men prescribed testosterone had a significantly higher cumulative incidence of reoperation for infection than patients not prescribed testosterone at 1 (<i>p</i> = 0.01), 2 (<i>p</i> < 0.001), 3 (<i>p</i> < 0.001), 4 (<i>p</i> < 0.001), and 5 years postoperatively (<i>p</i> < 0.001). Men prescribed testosterone had a significantly higher cumulative incidence for all-cause reoperation than patients not prescribed testosterone at 1 (<i>p</i> = 0.01), 2 (<i>p</i> = 0.003), 3 (<i>p</i> = 0.01), 4 (<i>p</i> < 0.001), and 5 years postoperatively (<i>p</i> < 0.001). Male patients who were prescribed supplemental testosterone within 1 year prior to primary TKA were at an increased risk for both all-cause reoperation and reoperation due to infection. Surgeons should consider the risks and benefits of testosterone cessation in the perioperative period for patients undergoing TKA.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":"617-625"},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144081601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What Matters Most for Patient Satisfaction Following Total Knee Arthroplasty? A Prospective Institutional Assessment of Individual Questions Captured by KOOS and VR-12 Mental Composite Score.","authors":"Ahmed K Emara, Brian Benyamini, Ignacio Pasqualini, Alvaro Ibaseta, Alison K Klika, Shujaa T Khan, Nicolas S Piuzzi","doi":"10.1055/a-2607-9835","DOIUrl":"10.1055/a-2607-9835","url":null,"abstract":"<p><p>Patient-reported outcome measures (PROMs) are crucial in evaluating the success of primary total knee arthroplasty (TKA). This study aimed to determine the individual significance of each question of the Knee Osteoarthritis Outcome Score (KOOS) and the Veterans RAND 12 (VR-12) Mental Composite Score (MCS) in achieving a Patient Acceptable Symptom State (PASS). A prospectively collected cohort of 9,942 unilateral elective TKAs was analyzed. Responses were collected for 17 KOOS questions (KOOS-Pain subscore, KOOS-Physical Function Short form [PS], and KOOS-Joint related [JR]) and 6 MCS questions preoperatively and 1-year postoperatively. Achievement of PASS was assessed through a positive response to a binary satisfaction-related question. The association between responses to questions and outcomes was examined via multivariable logistic regression models. A poorer preoperative response to knee pain frequency (odds ratio [OR] = 0.86 [0.77-0.97], <i>p</i> = 0.017) and knee pain while sitting or lying (OR = 0.88 [0.79-0.99], <i>p</i> = 0.029) was independently associated with reduced odds of achieving PASS at 1-year post-TKA. A more favorable preoperative response in knee pain during full knee straightening was independently associated with an increased odds of PASS attainment (OR = 1.10 [1.01-1.19], <i>p</i> = 0.035). No other metric was independently associated with PASS attainment at 1 year. Individual KOOS questions evaluating knee pain frequency, knee pain while sitting or lying down, and knee pain during full knee straightening were linked to patient satisfaction 1 year following TKA. Patients experiencing frequent or persistent knee pain at rest may represent those with more advanced joint disease or heightened pain sensitivity, contributing to lower postoperative satisfaction. Conversely, patients reporting minimal or no pain during specific movements, such as full knee straightening, likely had a less severe baseline condition, making their postoperative expectations more easily attainable, thereby leading to higher satisfaction.Level of evidence III.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":"601-610"},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144080234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Systematic Review and Meta-Analysis of Total Knee Arthroplasty after Tibial Plateau Fracture Fixation.","authors":"Elizabeth Rieger, Andrew Fuqua, Jason Shah, Maya Sinha, Ajay Premkumar","doi":"10.1055/a-2608-0105","DOIUrl":"10.1055/a-2608-0105","url":null,"abstract":"<p><p>Tibial plateau fractures (TPFs) are common injuries that pose a significant risk of posttraumatic osteoarthritis (PTOA) despite surgical fixation. Though total knee arthroplasty (TKA) has been proven as a viable treatment option for PTOA, there is a higher risk of postoperative complications in patients with prior TPF. This systematic review aimed to evaluate surgical considerations and outcomes of TKA in patients with prior TPF fixation. A search of PubMed MEDLINE, Embase, and Scopus databases from January 2008 to July 2023 was performed according to PRISMA guidelines using the following inclusion criteria: TPF, PTOA, TKA, and conversion TKA. Exclusion criteria included periprosthetic fractures, distal femoral fractures, and patients under 18 years. Two independent reviewers screened each study. For postoperative infection and revision rates, the results were pooled, and random-effects meta-analysis of single proportions was conducted to determine the combined rate of infections and revisions. Nine studies involving a total of 572 patients who underwent TKA following TPF fixation were included. The average patient age ranged from 44.0 to 65.7 years, with mean TPF-to-TKA intervals from 1.7 to 13.6 years. TPF fixation details, implant types, and complication rates, including infection (range 3.2-36.8%) and revision (range 0-20%), were reported in most studies. The meta-analysis pooled estimates for postoperative infection and revision rates were 11% (95% CI 0.06-0.16) at an average of 7.0 years follow-up and 9% (95% CI 0.04-0.15) at an average of 7.4 years follow-up. TKA in patients with previous TPF fixation can be complex and may require augmentation and increased implant constraint. Though the literature reports good functional outcomes in this TKA population, TKA after TPF fixation carries an increased risk of both infection and aseptic revision compared with patients undergoing TKA for osteoarthritis. Further high-quality prospective studies are needed to elucidate risk factors and optimize management strategies for patients undergoing TKA following TPF fixation.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":"639-649"},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144081583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Three Suture Techniques for Closure of Total Knee Arthroplasty: A Clinical Trial Study.","authors":"Mina Mirzaiee, Behzad Imani, Gholamreza Ghorbani Amjad, Ali Reza Soltanian, Maryam Maddineshat","doi":"10.1055/a-2607-9992","DOIUrl":"10.1055/a-2607-9992","url":null,"abstract":"<p><p>Total knee replacement surgery may result in keloids and hypertrophic scars that cause pain and itching. Limited research on wound closure techniques has led to differing opinions among orthopedic surgeons about the best methods to minimize scarring. Our study compares three suture techniques-tandem pulley stitch, modified buried vertical mattress suture (MBVMS), and modified vertical-horizontal mattress suture-alongside subcuticular suture in total knee joint replacement surgeries. A single-blind randomized trial was conducted with 91 candidates for knee replacement surgery at Besat Hospital in Hamadan University of Medical Sciences from June to November 2023. The participants were divided into four groups-three interventions and one control-using a random block design of four. We evaluated the average scores for scar assessment and surgeon satisfaction using the Patient and Observer Scar Assessment Scale (POSAS) and the Visual Analog Scale (VAS). These evaluations were performed at 2 weeks, 6 weeks, and 3 months after the surgery. In each of the four study groups, the scar scores at all time intervals, as evaluated by both surgeons and patients, were lowest (best) for the following groups in order: modified buried vertical mattress, subcuticular, modified vertical-horizontal mattress, and tandem pulley stitch. In each of the four study groups, the VAS score was highest (better) across all time intervals among the patient groups, ranked in the following order: modified buried vertical mattress, subcuticular, modified vertical-horizontal mattress, and tandem pulley stitch. The present study showed that the MBVMS revealed better results in terms of scar scores, as well as surgeon and patient satisfaction. This suture can be a suitable alternative to the subcuticular suture in knee joint replacement surgeries.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":"632-638"},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144286910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Femoral Notch Width, Shape, and Medial Tibial Plateau Concavity in Individuals with and without Anterior Cruciate Ligament Injury.","authors":"Nika Hajatpour, Hadi K Mobin, Reza Gerami, Shamim F Hesari, Jalal Kargar","doi":"10.1055/a-2607-9927","DOIUrl":"10.1055/a-2607-9927","url":null,"abstract":"<p><p>Anterior cruciate ligament (ACL) injuries can occur in people of all ages and genders. Women are significantly more likely to experience them, particularly during their adolescent and young adult years. In the current study, we compared the width and shape of the femoral intercondylar notch and depth of the concavity of the medial tibial plateau in individuals with and without ACL injuries. In this cross-sectional study, 100 participants (50 in the ACL injury group and 50 in the no-ACL injury group) were included. Data on age, gender, shape (categorized as U, A, and Ω), and width (notch width [NW] and notch width index [NWI]) of the femoral intercondylar notch, and the concavity depth of the medial tibial plateau and bicondylar width (BCW) of all participants were obtained from magnetic resonance imaging (MRI) and recorded. All data were analyzed using SPSS version 21, and a significance level of <0.05 was considered. The prevalence of female gender in the ACL and no-ACL injury groups was 40% and 52%, respectively. The mean NWI and medial tibial plateau depth were significantly higher in the no-ACL injury group compared with the ACL injury group (<i>p</i> < 0.001). The intercondylar notch shape significantly differed between the two groups, with a higher frequency of type A notch in the ACL injury group and U shape in the no-ACL injury group (<i>p</i> < 0.001). Additionally, the mean NW was significantly narrower in the ACL injury group across the ≤30- and >40-year age groups (<i>p</i> < 0.001), although no significant difference was found in the 31- to 40-year age group (<i>p</i> > 0.05). Receiver operating characteristic (ROC) analysis indicated that NWI was the most predictive measure for ACL injuries (area under the curve [AUC] = 0.869), followed by NW (AUC = 0.763). BCW, however, had a lower predictive value (AUC = 0.431). Due to our findings, narrow NWI and A-shaped femoral intercondylar notch were more prevalent in the ACL injury group than the no-ACL injury group, suggesting a risk factor for ACL injuries.</p>","PeriodicalId":48798,"journal":{"name":"Journal of Knee Surgery","volume":" ","pages":"611-616"},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}