Arthroscopy-The Journal of Arthroscopic and Related Surgery最新文献

{"title":"The Femoral Impingement Index Predicts Inferior Clinical Outcomes in Men Undergoing Hip Arthroscopy for Femoroacetabular Impingement Syndrome.","authors":"Ronak M Patel, Ryan S Selley, Hayden P Baker, Joost A Burger, Matthew S Dooley, Jeremy Rinzler, Stephanie Buza, Bryan T Kelly, Danyal H Nawabi","doi":"10.1002/arj.70525","DOIUrl":"10.1002/arj.70525","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the association of femoral version, McKibbin index, and femoral impingement index (FII) on patient-reported outcomes after primary hip arthroscopy for femoroacetabular impingement syndrome.</p><p><strong>Methods: </strong>We retrospectively reviewed prospectively collected data from a hip preservation registry. Inclusion criteria included Tönnis grade ≤1 and a minimum 2-year follow-up. Computed tomography-based morphologic parameters and validated patient-reported outcomes (modified Harris Hip Score, hip outcome score-activities of daily living, hip outcome score-sport-specific subscale, and International Hip Outcome Tool) were analyzed. Patients were stratified by femoral version, McKibbin index, and FII (low <45°, moderate 45°-75°, high >75°). Multivariable regression adjusted for age and preoperative scores was used to assess outcomes and achievement of the minimal clinically important difference.</p><p><strong>Results: </strong>A total of 456 hips met inclusion criteria, with significant improvements across all outcome measures at a mean follow-up of 2.6 years (P < .001). No significant differences in outcomes were observed when stratified by femoral version or McKibbin index. However, patients with high FII (>75°), predominantly men, displayed lower net improvement in hip outcome score-sport-specific subscale scores (14.6 vs 28.1 and 33.4 in moderate and low FII groups, respectively; P = .024) and reduced odds of achieving the minimal clinically important difference (53% vs 75% in low FII group; P = .047). Among men, increasing FII was associated with significantly lower improvements in hip outcome score-activities of daily living and hip outcome score-sport-specific subscale scores and lower likelihood of achieving minimal clinically important difference (adjusted odds ratio 0.19; 95% confidence interval 0.04-0.83; P = .028).</p><p><strong>Conclusions: </strong>In this cohort, a high FII (>75°) was associated with significantly lower net patient-reported outcome measure improvement in male patients.</p><p><strong>Level of evidence: </strong>Level III, retrospective cohort study.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2551-2559"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148957237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial Commentary: Beware of Residual Meniscal Shrinkage: Leaving More Is Not Better After Saucerization of a Discoid Lateral Meniscus.","authors":"Merrick J Wetzler","doi":"10.1002/arj.70535","DOIUrl":"10.1002/arj.70535","url":null,"abstract":"<p><p>Recent literature has shown optimal residual meniscal width after saucerization and repair of discoid lateral meniscus. Using serial magnetic resonance imaging analysis, the authors defined the appropriate postoperative meniscal morphology. Notably, larger postoperative midbody widths (>13 mm) were associated with shrinkage and higher complication rates, challenging the idea that greater tissue preservation is beneficial. Instead, the study identifies a \"functional target zone\" of 9 to 13 mm, aligning closely with the native lateral meniscus. Despite convergence in meniscal width over time, increased complications in initially oversized resections suggest no long-term advantage to under-resection. The findings also highlight the role of postoperative remodeling, meniscal extrusion, and patient activity levels in influencing outcomes. Overall, the focus has shifted from under-resection to optimal resection, providing clinically relevant guidance for improving outcomes in discoid lateral meniscus treatment.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2603-2604"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148901572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suture-Only Fixation of Meniscal Allograft Is Associated With a Higher Reoperation Rate Than Bone Plug or Bone Bridge-in-Slot Fixation Techniques.","authors":"Griffith G Gosnell, Vishal Sundaram, Larry Chen, Isabella B Jazrawi, Heath P Gould, Michael J Alaia, Guillem Gonzalez-Lomas, Eric J Strauss","doi":"10.1002/arj.70410","DOIUrl":"10.1002/arj.70410","url":null,"abstract":"<p><strong>Purpose: </strong>To compare meniscus-specific reoperation rates among various meniscal allograft transplantation (MAT) fixation techniques including bone plug, bone bridge-in-slot, and suture-only fixation.</p><p><strong>Methods: </strong>A retrospective review was conducted of patients who underwent MAT at a single academic institution between 2011 and 2023. Patients were included if they had documented fixation technique and a minimum of 1-year follow-up. Demographics, fixation techniques (bone plug, bone bridge-in-slot, and suture-only), and subsequent ipsilateral knee surgeries were recorded. Statistical analyses assessed the influence of fixation techniques and other factors on meniscus-specific reoperation rates defined as subsequent ipsilateral meniscectomy, meniscus repair, revision MAT, or knee arthroplasty.</p><p><strong>Results: </strong>The study included 139 patients (54% male patients; mean age: 29.4 ± 10.0 years; body mass index: 27.3 ± 5.6) with a mean follow-up of 6.6 ± 3.1 years. Lateral compartment MAT was performed in 51.1% of cases. Patients undergoing suture-only fixation had significantly higher meniscus-specific reoperation rates (15/48, 31.3%) compared with bone bridge-in-slot (4/45, 8.9%) and bone plug (5/46, 10.9%) fixation (P = .006). Meniscectomy (15/35, 42.9%) and meniscal repair (7/35, 20.0%) were the most common reoperations. Other reoperations included 2 total knee arthroplasties within the suture-only cohort and a single MAT revision in the bone bridge-in-slot cohort.</p><p><strong>Conclusions: </strong>This study reveals that MAT using suture-only fixation exhibits significantly higher reoperation rates than bone plug and bone bridge-in-slot techniques, with meniscectomy and meniscal repair representing the predominant subsequent surgeries.</p><p><strong>Level of evidence: </strong>Level III, retrospective comparative study.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2616-2626"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148563777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tibial Tubercle-Posterior Cruciate Ligament Distance Fails to Capture Pathologic Patellar Lateralization in Trochlear Dysplasia.","authors":"Jakob Ackermann, Divesh Sachdev, Jay Amin, Adam B Yanke","doi":"10.1002/arj.70544","DOIUrl":"10.1002/arj.70544","url":null,"abstract":"<p><strong>Purpose: </strong>To compare tibial tubercle-trochlear groove (TT-TG) and tibial tubercle-posterior cruciate ligament (TT-PCL) distances across grades of trochlear dysplasia (TD) in patients with patellofemoral instability, to evaluate their relations with knee rotation angle (KRA) and patellar lateralization, measured as patellar tendon-lateral trochlear ridge (PTLTR), and to determine its influence on surgical indications for realignment procedures.</p><p><strong>Methods: </strong>Patients with patellofemoral instability treated between 2017 and 2024 were retrospectively reviewed. Magnetic resonance imaging measurements included TT-TG, TT-PCL, TTdiff (TT-TG - TT-PCL), KRA, and PTLTR. TD was graded by Dejour classification and grouped as normal/low grade (normal-A) or high grade (B-D). Pathologic thresholds were defined as TT-TG ≥ 15 mm, TT-PCL ≥ 24 mm, and PTLTR ≥ 5.6 mm. Independent-samples t-tests, Mann-Whitney U tests, Pearson correlation coefficients, Fisher's exact tests, and receiver operating characteristic curve analysis were used as appropriate.</p><p><strong>Results: </strong>A total of 153 patients were included. Mean TT-TG and TT-PCL were 17.3 ± 5.6 and 21.7 ± 4.1 mm, respectively. High-grade TD showed significantly greater TT-TG (18.7 ± 6.3 vs 16.0 ± 5.6 mm, P = .002), KRA (4.4 ± 6.8° vs 1.9 ± 8.0°, P < .001), and PTLTR (18.2 ± 8.5 vs 12.6 ± 8.1 mm, P < .001), whereas TT-PCL did not differ between groups (P = .387). TT-TG correlated positively with KRA (r = 0.47, P < .001), whereas TT-PCL showed a weak inverse correlation (r = -0.18, P = .027); TTdiff showed the strongest association (r = 0.56, P < .001). PTLTR correlated with TT-TG (P < .001) but not TT-PCL. Threshold analysis revealed discordance: 39.2% of normal/low-grade and 44.6% of high-grade TD patients were pathologic by TT-TG despite normal TT-PCL, whereas only 26.8% met TT-PCL criteria overall (P = .004).</p><p><strong>Conclusions: </strong>TT-PCL underestimates functional patellar lateralization and surgical candidacy for realignment, particularly in high-grade TD where rotational malalignment is prominent. TT-TG shows stronger associations with rotational alignment and patellar engagement.</p><p><strong>Level of evidence: </strong>Level III, retrospective cohort study.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2577-2586"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148898476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Natural Language Processing Improves Postoperative Discharge Instructions.","authors":"Carrie N Reaver, Rohit Siddabattula, Daniel E Pereira","doi":"10.1002/arj.70400","DOIUrl":"10.1002/arj.70400","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the readability, understandability, and actionability of current orthopaedic discharge instructions and assess the effectiveness of generative artificial intelligence (AI) in addressing these areas of improvement.</p><p><strong>Methods: </strong>Orthopaedic discharge instruction documents were collected from a large academic hospital from March to May 2025. Subcategories frequently associated with postoperative inquiries-activities, complications and follow-up, medications, narcotics, pain management, physical therapy, and wound care-were extracted for analysis. ChatGPT-4 was used to generate improved discharge instructions using structured prompting strategies. Readability and text complexity measures were assessed using 5 validated readability tests whereas understandability and actionability were assessed using a modified Patient Education Materials Assessment Tool (PEMAT). Paired t-tests were used to compare scores between original and ChatGPT-rewritten content whereas comparisons across subcategories were achieved with independent samples t-tests (P < .05).</p><p><strong>Results: </strong>Fifty-two subcategory excerpts were identified across twelve distinct discharge instructions. ChatGPT significantly reduced the average reading grade level of discharge instructions from 9.8 to 7.5 across all content categories (P < .001). The wound care subcategory showed the lowest reading grade level before and after ChatGPT. The narcotics subcategory showed the highest reading grade level before ChatGPT, whereas the medications and physical therapy subcategories showed the highest reading grade level after ChatGPT. Understandability and actionability scores improved from 63.6% to 87.9% (P < .001) and from 44.4% to 73.6%, respectively (P < .001).</p><p><strong>Conclusions: </strong>Generative AI significantly improves the readability, understandability, and actionability of orthopaedic discharge instructions; however, not all documents achieved the desired sixth-grade reading level. Subcategory analysis revealed opportunities for targeted interventions to improve patient education in specific topics, such as narcotics, medication, or physical therapy-related instructions.</p><p><strong>Clinical relevance: </strong>This study describes a cost-effective, scalable AI intervention for improving orthopaedic discharge instructions which may improve clinical outcomes, reduce healthcare burden, and support patients' management of postoperative recovery.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2725-2731"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148347291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patellar Height Measures Are Affected by Patellar Position and Trochlear Dysplasia: Implications for Determining Patella Alta.","authors":"James L Pace, Tanner E James, Saygin Kamaci, Lindsey C Hartland, John P Abt","doi":"10.1002/arj.70452","DOIUrl":"10.1002/arj.70452","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effect that patellar position has on patellar height (PH) measurements by looking at differences between 1-image and 2-image PH measurements and examining their correlation with trochlear dysplasia (TD).</p><p><strong>Methods: </strong>Patients were identified between 2019 and 2022 who met criteria for either recurrent patellar instability or control evaluation without instability and underwent knee magnetic resonance imaging (MRI). PH was assessed on MRI using 1-image and 2-image Caton-Deschamps ratio (CDR) and patellotrochlear index (PTI). TD was evaluated on MRI via lateral trochlear inclination, lateral patellar inclination (LPI), and sulcus angle. Two-sample t-tests determined differences between study and control patients and paired t-tests determined differences between 1- and 2-image PH measurements. Pearson correlation analysis assessed the relationship between PH and TD measurements.</p><p><strong>Results: </strong>A total of 190 patients were included (99 with patellar instability, 91 controls). MRI measurements of PH and TD were different between study and control groups (P < .05) except for PTI measurements. Full cohort analysis showed that significant differences were present for 1 versus 2-image measurements for both CDR and PTI (P < .001). The 1-image CDR had a moderate association with TD: lateral trochlear inclination (r = -0.38, P < .001), sulcus angle (r = 0.39, P < .001) and LPI (r = 0.47, P < .001). PTI measures had only a weak association with LPI.</p><p><strong>Conclusions: </strong>Two-image PH measurements produced lower assessments of PH than 1-image measures supporting the hypothesis that patellar position affects perceived PH on MRI. The 1-image CDR has a strong enough of an association with TD that it may not be a reliable measure of PH and may regularly overestimate PH assessments.</p><p><strong>Level of evidence: </strong>Level III, retrospective comparative case series.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2684-2694"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148622645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial Commentary: Lateral Extra-articular Tenodesis in Quadriceps Tendon Anterior Cruciate Ligament Reconstruction: Improved Rotational Control, but Are We Redefining Failure?","authors":"Iain R Murray, Jonathan T Super, Christopher M LaPrade, Luke V Tollefson, Robert F LaPrade","doi":"10.1002/arj.70436","DOIUrl":"10.1002/arj.70436","url":null,"abstract":"<p><p>Persistent rotational instability following anterior cruciate ligament reconstruction (ACLR) remains one of the greatest unresolved challenges in modern sports medicine, particularly in young athletes returning to cutting and pivoting sports. Although contemporary ACLR techniques frequently provide excellent subjective outcomes, residual rotatory laxity continues to be associated with graft failure, revision surgery, and failure to return to preinjury athletic performance. Against this background, lateral extra-articular tenodesis has experienced a substantial resurgence as an adjunct procedure aimed at improving rotational control. High-level evidence in young, high-risk patients undergoing hamstring autograft ACLR has showed that lateral extra-articular tenodesis augmentation reduced graft rupture rates and persistent rotatory laxity. As the use of quadriceps tendon autograft continues to increase, it is increasingly important to determine whether the benefits observed with hamstring ACLR extend to quadriceps tendon ACLR. This evolving evidence base has significant implications for graft choice and outcomes in high-risk athletic populations.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2642-2645"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148371033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial Commentary: Repair or Reconstruct Large Rotator Cuff Defects? Still in Search for the Answer.","authors":"Lorenz Fritsch, Peter J Millett","doi":"10.1002/arj.70594","DOIUrl":"10.1002/arj.70594","url":null,"abstract":"<p><p>Large and massive rotator cuff tears remain a significant challenge in orthopaedic surgery. Although numerous surgical techniques have been described, no single approach has emerged as the definitive treatment for this complex pathology. Although many patients remain asymptomatic and report satisfactory clinical outcomes, structural failure remains common, with retear rates on postoperative magnetic resonance imaging approaching 50% at 10-year follow-up in some series. Overall, conventional rotator cuff repair remains an effective treatment strategy, showing clinical outcomes comparable to augmented repairs. Many studies have shown the biological benefits of patches and the safety of these scaffolds. Ideally, a large multicenter randomized controlled trial would answer whether routine patch augmentation is necessary and beneficial in the management of large and massive rotator cuff tears.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2428-2430"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148957147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial Commentary: Fixation Matters-When Technique Becomes Biology in Meniscal Allograft Transplantation.","authors":"Charles Cossell","doi":"10.1002/arj.70442","DOIUrl":"10.1002/arj.70442","url":null,"abstract":"<p><p>Meniscal allograft transplantation is a well-established treatment for symptomatic meniscal deficiency, yet the optimal fixation strategy remains debated. Recent studies revealed that suture-only fixation is associated with significantly higher meniscus-specific reoperation rates compared with bone plug and bone bridge-in-slot techniques. These findings reinforce that the fixation method is not merely a technical consideration, but a determinant of graft biomechanics and survivorship. Suture-only fixation may inadequately restore native hoop stress and tibiofemoral contact mechanics, contributing to increased graft extrusion, elevated joint pressures, and subsequent reoperation. Additionally, variation in outcomes by compartment and patient sex suggests that both anatomic and biological factors interact with fixation strategy. These data challenge the notion that fixation techniques are interchangeable and instead position fixation as a modifiable factor influencing clinical outcomes. Surgeons should incorporate these findings into operative decision-making and patient counseling, favoring fixation strategies that more reliably restore native meniscal function and improve long-term graft durability.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2627-2628"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148594748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Postoperative Infections After Anterior Cruciate Ligament Reconstruction Significantly Increase the Risk of 3-Compartment Osteoarthritis at Long-Term Follow-Up.","authors":"Vasileios S Akrivos, Alexandros Koskiniotis, Efstathios Konstantinou, Nikolaos Metaxiotis, Alexandros Saridis, Nikolaos Stefanou, Michael Hantes","doi":"10.1002/arj.70489","DOIUrl":"10.1002/arj.70489","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the long-term radiographic and clinical outcomes of patients who developed postoperative infection after anterior cruciate ligament reconstruction (ACLR) with those of a matched cohort of patients who underwent uncomplicated ACLR to determine the impact of infection on the development of osteoarthritis (OA) and knee function.</p><p><strong>Methods: </strong>This retrospective case-controlled comparative study included patients who developed postoperative infection after primary ACLR performed between January 2003 and January 2014. Eligible patients had no baseline OA and a minimum 10-year clinical and radiographic follow-up. A matched group of patients with uncomplicated ACLR served as controls. Radiographic OA was assessed using the Kellgren-Lawrence and Osteoarthritis Research Society International criteria, alignment with the hip-knee-ankle angle, and clinical outcomes with the International Knee Documentation Committee, Lysholm, and Tegner scores and KT-1000 anteroposterior laxity. Statistical comparisons were performed using independent t-tests for continuous variables and Fisher's exact test for categorical outcomes.</p><p><strong>Results: </strong>At a mean follow-up of 16.2 years (range, 14-19 years), all 7 patients who developed postoperative infection showed 3-compartment OA (Kellgren-Lawrence grade ≥2), whereas 35% of the control group developed OA (P = .0058). The hip-knee-ankle angle averaged 4.42° varus in infected knees versus 4.67° varus in control knees (P = .77). No significant differences were observed in clinical scores, anteroposterior laxity, or contralateral knees between groups.</p><p><strong>Conclusions: </strong>This study shows that postoperative infection after ACLR significantly increases the risk of 3-compartment OA at long-term follow-up compared with uncomplicated ACLR.</p><p><strong>Level of evidence: </strong>Level III, retrospective comparative study.</p>","PeriodicalId":55459,"journal":{"name":"Arthroscopy-The Journal of Arthroscopic and Related Surgery","volume":" ","pages":"2713-2721"},"PeriodicalIF":6.9,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148814855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}