Knee最新文献

{"title":"Bidirectional barbed polydioxanone filament insertion in vastus medialis oblique muscle for knee osteoarthritis improvement","authors":"Sai-Won Kwon ,&nbsp;Sung-Woo Choi ,&nbsp;Byung-Hak Oh ,&nbsp;Chang-Hyun Kim ,&nbsp;Byung-Ryul Lee ,&nbsp;Hyoung-Ye Kim ,&nbsp;Mi-Ae Nam ,&nbsp;Kang-San Lee ,&nbsp;Dong-Woo Lee","doi":"10.1016/j.knee.2025.03.006","DOIUrl":"10.1016/j.knee.2025.03.006","url":null,"abstract":"<div><h3>Background</h3><div>Strengthening the quadriceps muscle in patients with knee osteoarthritis (OA) can effectively alleviate symptoms such as pain and swelling. However, the use of bidirectional barbed polydioxanone filament (BBPF) for this purpose remains underexplored. Therefore, this study aimed to evaluate the impact of a new muscle enhancement and support therapy (MEST) involving the insertion of a BBPF into the vastus medialis obliquus (VMO) to improve the symptoms of knee OA.</div></div><div><h3>Methods</h3><div>In a multicenter, randomized, double-blind study, we evaluated 131 patients over 40 with Kellgren–Lawrence grade II–III medial compartment knee OA. Of these, 88 received BBPF insertion into the VMO (MEST group), and 43 were in the control group. We compared pain levels (via a visual analog scale (VAS) during weight-bearing and walking), quadriceps muscle strength (IMCSQ), Patient Global Impression of Change (PGIC), and Clinical Global Impression of Change (CGIC), assessing outcomes before and after the procedure.</div></div><div><h3>Results</h3><div>At four and eight weeks post-procedure, the VAS scores during weight-bearing and walking were significantly lower in the MEST group compared to the control group (<em>P</em> = 0.001). The differences in the IMCSQ at four and eight weeks post-procedure were significantly higher in the MEST group (<em>P</em> = 0.001). The PGIC and CGIC scores improved significantly at four weeks post-procedure (<em>P</em> = 0.001).</div></div><div><h3>Conclusion</h3><div>By reducing pain, improving function, and increasing muscle strength, MEST shows promise as a valuable addition to current treatment options. The biodegradable nature of the sutures suggests that repeat procedures may be beneficial, warranting further investigation to optimize this technique for wider clinical use.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"55 ","pages":"Pages 1-11"},"PeriodicalIF":1.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777334","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":"Response to the letter regarding “Bone Patella Bone allografts show superior outcomes in revision ACL reconstruction: A systematic review and meta-analysis”","authors":"Kamrul Hasan,&nbsp;Yuvraj Chhabraa,&nbsp;Sarup Saroha,&nbsp;Raj Thakrar,&nbsp;Akash Patel","doi":"10.1016/j.knee.2025.03.007","DOIUrl":"10.1016/j.knee.2025.03.007","url":null,"abstract":"","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Page 342"},"PeriodicalIF":1.6,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789389","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":"Accuracy amidst errors: Evaluating a commercially available wearable sensor system and its associated calibration procedures for monitoring sagittal knee motion in patients undergoing total knee arthroplasty","authors":"Ryan M. Chapman ,&nbsp;Kelly B. Taylor ,&nbsp;Emily Kaczynski ,&nbsp;Shayan Khodabakhsh ,&nbsp;Skye Richards ,&nbsp;Jayson B. Hutchinson ,&nbsp;Robert C. Marchand","doi":"10.1016/j.knee.2025.03.001","DOIUrl":"10.1016/j.knee.2025.03.001","url":null,"abstract":"<div><h3>Background</h3><div>Commercially available wearable sensors monitoring knee range of motion (ROM) are gaining traction in orthopaedics, but few studies validate against optical motion capture (MOCAP) in total knee arthroplasty (TKA) patients. Furthermore, wearable calibration is essential for accurate measurements, yet few investigations evaluate calibration and ROM accuracy. This study assessed one commercial wearable sensor system’s calibration (goniometric versus MOCAP) and sagittal knee angle computation accuracy in TKA patients during activities.</div></div><div><h3>Methods</h3><div>Twenty TKA patients were recruited (5 lost to follow-up). Following a sensor tutorial (MotionSense, Stryker, Mahwah, NJ), participants self-applied sensors for pre-TKA data capture. TKA was then performed by one surgeon followed by identical post-TKA data captures. MOCAP and wearable sensor data were collected during activities. MOCAP sagittal knee angles (θ_MOCAP) were compared to two wearable sensor knee angles: 1) θ_CalGoni = goniometric calibration, 2) θ_CalMOCAP = MOCAP calibration. Two-way ANOVAs evaluated the impact of time (pre-TKA vs. post-TKA) and calibration type (goniometry vs. MOCAP) on calibration angles and wearable sensor error. Variance equality tests compared pre-TKA vs. post-TKA and goniometric vs. MOCAP calibration.</div></div><div><h3>Results</h3><div>No significant differences were noted pre-TKA vs. post-TKA. Calibration angles differed significantly with goniometry yielding significantly more error than MOCAP. MOCAP calibration reduced error below clinically acceptable levels (&lt;5°) during activities and with significantly less error variance.</div></div><div><h3>Conclusion</h3><div>MOCAP calibration significant improved accuracy of knee angle computations to acceptable levels (&lt;5°). Accordingly, these wearables are suitable for continuous knee ROM monitoring after calibrating with correct angles, Future studies should investigate specific activities and sensor misplacement on angle measurements.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 316-328"},"PeriodicalIF":1.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747388","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 ultrasonography findings of patients with patellofemoral pain and healthy controls","authors":"Derya Karacif ,&nbsp;Onur Karacif ,&nbsp;Ayla Cagliyan Turk ,&nbsp;Handan Elif Nur Bayraktar","doi":"10.1016/j.knee.2025.03.003","DOIUrl":"10.1016/j.knee.2025.03.003","url":null,"abstract":"<div><h3>Background</h3><div>The aim of this study was to compare knee ultrasonography findings in patients with Patellofemoral Pain (PFP) and healthy controls.</div></div><div><h3>Methods</h3><div>Our cross-sectional study included 54 participants, 27 patients with PFP and 27 healthy controls. Medial and lateral retinaculum thickness, trochlear cartilage thickness and patellofemoral distances were measured by ultrasonography In the PFP group, pain intensity at rest and during activity was assessed by Visual Analogue Scale (VAS, 0–10 cm), functional status was assessed by Kujala Patellofemoral Pain Scoring system. The quality of life of both groups was evaluated with the Short Form-36 (SF-36).</div></div><div><h3>Results</h3><div>The groups were similar in terms of age, gender, body mass index (BMI), marital status, educational level and dominant extremity. In the PFP group, medial and lateral retinaculum thickness, medial patellofemoral distance were found to be significantly higher (mean difference [MD]:1.08; 95% confidence interval [CI]:0.87–1.28, MD:0.80; 95%CI:0.59–1.01, MD:5.65; 95%CI:4.68–6.61, respectively), while medial and lateral cartilage thickness were found to be significantly lower than the control group (MD:1.32; 95%CI:1.0–1.64, MD:-1.56; 95%CI:-1.86--1.26, respectively). There was no significant difference in lateral patellofemoral distance between the two groups (<em>p</em> = 0.752). No statistically significant correlation was found between ultrasonography measurements and age, BMI, pain duration, Kujala score, VAS scores at rest and during activity and SF-36 subgroup scores in the PFP group.</div></div><div><h3>Conclusion</h3><div>In our study, medial retinaculum thickness, lateral retinaculum thickness and medial patellofemoral distance were statistically significantly higher and medial and lateral trochlear cartilage thickness were lower in the PFP group compared to the control group.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 329-339"},"PeriodicalIF":1.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143747279","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":"Synovial D-dimer is a novel and accurate test for diagnosis of chronic knee periprosthetic joint infection","authors":"Zirvecan Güneş ,&nbsp;Mehmet Kürşat Yılmaz ,&nbsp;Bahattin Kemah ,&nbsp;Ömür Çağlar ,&nbsp;Ahmet Mazhar Tokgözoğlu ,&nbsp;Javad Parvizi ,&nbsp;İbrahim Azboy ,&nbsp;Bülent Atilla","doi":"10.1016/j.knee.2025.02.027","DOIUrl":"10.1016/j.knee.2025.02.027","url":null,"abstract":"<div><h3>Background</h3><div>Despite numerous tests and guidelines, diagnosing periprosthetic joint infection (PJI) remains challenging. The study aimed to determine the value of synovial D-dimer, rather than serum, in diagnosing PJI.</div></div><div><h3>Methods</h3><div>This prospective study enrolled 17 patients with chronic knee PJI (the PJI group) and 52 with primary knee osteoarthritis (the control group). PJI was defined using the 2018 International Consensus Meeting Criteria. Synovial D-dimer, plasma D-dimer, serum erythrocyte sedimentation rate, and serum C-reactive protein levels were measured. Synovial fluid D-dimer levels were determined using an enzyme-linked fluorescence assay. The performance of each biomarker in diagnosing PJI was evaluated using receiver operating characteristic (ROC) curves.</div></div><div><h3>Results</h3><div>The median synovial D-dimer level was significantly higher in the PJI group at (927,095 ng/ml, IQR 566,882–1,215,066) than in the control group (20,954 ng/ml, IQR 10,350–46,493) (<em>P &lt;</em> 0.001). When the synovial D-dimer threshold value was determined to be 236,804 ng/ml, the sensitivity was 100% (CI 93.2–100%), and the specificity was 94.12% (95% CI 71.3–99.9). The area under the curve determined by ROC analysis was 0.992 (95% CI 0.992–1.000, <em>P &lt;</em> 0.0001).</div></div><div><h3>Conclusions</h3><div>Patients with chronic knee PJI have significantly high synovial D-dimer levels, demonstrating that an increase in fibrinolytic activity coexists with an infection-induced inflammatory response. Synovial D-dimer levels appear to be valuable biomarkers for diagnosing PJI. However, further studies are required to evaluate the role of this novel biomarker.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 282-290"},"PeriodicalIF":1.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143671682","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":"Restoration of anatomical knee phenotype is associated with improved postoperative clinical outcomes after total knee arthroplasty","authors":"Hong Yeol Yang,&nbsp;Jae Hyeok Cheon,&nbsp;Jae Yeon Hwang,&nbsp;Jong Keun Seon","doi":"10.1016/j.knee.2025.02.028","DOIUrl":"10.1016/j.knee.2025.02.028","url":null,"abstract":"<div><h3>Background</h3><div>A comprehensive assessment of knee phenotypes is crucial for optimizing surgical realignment strategies in total knee arthroplasty (TKA). This study aimed to investigate the relationship between the restoration of preoperative phenotypes, such as joint line orientation (JLO) and alignment, and clinical outcomes following TKA.</div></div><div><h3>Methods</h3><div>A retrospective review was performed on the records of 1052 primary osteoarthritic knees that underwent mechanically aligned (MA) TKA between March 2016 and October 2021. Patient-reported outcome measures (PROMs) were assessed preoperatively and at 2 years postoperatively. Patients were categorized according to the coronal plane alignment of the knee (CPAK) classification system, which incorporates the arithmetic hip–knee–ankle angle (aHKA) as an indicator of constitutional alignment and JLO. Clinical outcomes were compared between patients whose knee phenotype was maintained and those in whom it was not restored.</div></div><div><h3>Results</h3><div>Among osteoarthritic knees, the majority (59.4%) were classified as CPAK type I (varus aHKA, apex distal JLO) preoperatively. Using mechanical axis techniques, the native phenotype was restored in 127 (12.1%) of the 1052 cases. These patients demonstrated significantly better postoperative clinical outcomes, as measured by WOMAC function and Forgotten Joint Scores (FJS), compared with the non-restored group (<em>P</em> &lt; 0.05). When alignment was adjusted through detailed analyses of patients with maintained alignment between preoperative and latest follow up assessments, the significant differences in WOMAC function and FJS outcomes between restored JLO and non-restored JLO groups persisted (all <em>P</em> &lt; 0.05). No significant association was observed between the restoration of aHKA and clinical outcomes.</div></div><div><h3>Conclusion</h3><div>The restoration of the anatomical knee phenotype, particularly JLO, is associated with improved postoperative PROMs, notably in functional outcomes, following TKA. These findings underscore the clinical importance of prioritizing preoperative JLO for optimizing surgical outcomes, rather than focusing exclusively on overall limb alignment.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 291-300"},"PeriodicalIF":1.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143671681","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":"Application of machine learning in the context of reoperation, outcome and management after ACL reconstruction – A systematic review","authors":"Julius Michael Wolfgart ,&nbsp;Ulf Krister Hofmann ,&nbsp;Maximilian Praster ,&nbsp;Marina Danalache ,&nbsp;Filipo Migliorini ,&nbsp;Martina Feierabend","doi":"10.1016/j.knee.2025.02.032","DOIUrl":"10.1016/j.knee.2025.02.032","url":null,"abstract":"<div><h3>Introduction</h3><div>Machine learning-based tools are becoming increasingly popular in clinical practice. They offer new possibilities but are also limited in their reliability and accuracy.</div></div><div><h3>Objectives</h3><div>The present systematic review updates and discusses the existing literature regarding machine learning algorithm-based tools to predict outcome and management in patients after ACL reconstruction.</div></div><div><h3>Method</h3><div>PubMed was searched for articles containing machine learning algorithms related to anterior cruciate ligament reconstruction and its outcome and management. No additional filters or time constraints were used. All eligible studies were accessed by hand.</div></div><div><h3>Results</h3><div>After screening of 115 articles, 15 were included. Six studies evaluated predictors for reoperation after ACL surgery. Four studies investigated the clinical outcome prediction after ACL reconstruction including prediction of secondary meniscus tear and secondary knee osteoarthritis. Single topics addressed in patients with ACL reconstruction were costs, opioid use, the need for a femoral nerve block, short term complications, hospital admission, and reduction of the burden to complete the Knee Osteoarthritis and Outcome score questionnaire. Predictive power was very heterogeneous, depending on the specific research question and parameters included.</div></div><div><h3>Conclusion</h3><div>New machine-learning tools offer interesting insights into variables affecting the target outcome and general management of patients with ACL reconstruction. While present machine-learning based prediction models seem to outperform previous existing benchmark regression models, their predictive ability often is still too low to base individual decision making on them. With the rapid progress observed over the last few years, it is conceivable that this might change, however, in the foreseeable future.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 301-315"},"PeriodicalIF":1.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643502","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":"Dynamic ultrasound-based determination of the optimal knee position for pullout fixation of medial meniscus posterior root tears","authors":"Haruhiko Nakamura,&nbsp;Atsuto Hoshikawa,&nbsp;Kei Sato,&nbsp;Ryota Takei,&nbsp;Risa Matsumoto,&nbsp;Hiroshi Inui,&nbsp;Kazuo Saita","doi":"10.1016/j.knee.2025.02.029","DOIUrl":"10.1016/j.knee.2025.02.029","url":null,"abstract":"<div><h3>Purpose</h3><div>A larger medial meniscus extrusion (MME) predicts a poorer prognosis after arthroscopic pullout fixation for medial meniscus posterior root tears (MMPRT). However, the optimal knee position in surgery for MMPRT to reduce MME is unclear. We evaluated the MME at various knee positions used for medial fixation.</div></div><div><h3>Methods</h3><div>We enrolled 20 patients who underwent MMPRT repair and performed ultrasonography preoperatively under anaesthesia, before fixation (both with or without traction), and post-fixation. MMEs were measured in positions A, B, C, and D (supine with the leg dropped from the bed with the knee flexed; valgus stress knee; figure-of-four; and supine with the injured knee flexed over the bed, respectively) at different time points and compared. Surgical fixation was performed in Position B.</div></div><div><h3>Results</h3><div>The preoperative mean MMEs at positions A, B, C, and D were 1.5, 1.4, 5.8, and 3.6 mm, respectively, and MMEs at A and B were significantly smaller than those at C and D, whereas the MME at C was significantly larger than that at D. The intraoperative mean MMEs, at positions B and C, before traction, with traction, and post-fixation were 1.2 and 5.5 mm, 0.7 and 4.3 mm, and 0.9 and 2.3 mm, respectively.</div></div><div><h3>Conclusion</h3><div>During MMPRT repair, MMEs increased in the figure-of-four position, but decreased with pullout fixation in the valgus stress knee position. Therefore, the valgus stress knee position is suitable for pullout fixation in MMPRT repair.</div></div><div><h3>Level of Evidence</h3><div>IV.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 275-281"},"PeriodicalIF":1.6,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of pre-operative co-morbidities on pain and function outcomes at 1 year after primary total knee arthroplasty","authors":"Sean D. Scattergood ,&nbsp;Vincent Cheng ,&nbsp;Vikki Wylde ,&nbsp;Ashley W. Blom ,&nbsp;Michael R. Whitehouse ,&nbsp;Erik Lenguerrand","doi":"10.1016/j.knee.2025.02.031","DOIUrl":"10.1016/j.knee.2025.02.031","url":null,"abstract":"<div><h3>Introduction</h3><div>Multimorbidity has been found to be associated with more pain and poorer function following total knee arthroplasty (TKA). We describe the relationship between both the total number of pre-operative co-morbidities, and individual co-morbidities, with the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score at 12 months after TKR.</div></div><div><h3>Methods</h3><div>We performed a secondary analysis on 290 participants from the Arthroplasty Pain Experience (APEX) trial, with seventeen imputations by Chained Equations. Using multivariable adjusted linear regression models, we analysed the relationship between total number of pre-operative co-morbidities, followed by individual co-morbidities, with WOMAC score at 12 months after randomisation.</div></div><div><h3>Results</h3><div>Patients with ≥ 5 co-morbidities have worse outcomes compared to patients with 3 co-morbidities, scoring −9.6 points for function (95% CI −15.3 to −3.8), and −9.8 points for pain (95%CI −15.9 to −3.8). Patients reported worse pain with osteoporosis (−7.8 95%CI −14.1 to −1.6), peripheral vascular disease (−17.8 95%CI −34 to −1.8), depression (−9.8 95%CI −18.1 to −1.4), anxiety (−9.7 95%CI −18 to −1.4) or degenerative disc disease (−7.5 95%CI −13.3 to −1.7). Worse function was associated with osteoporosis (−7.1 95%CI −12.9 to −1.4), diabetes mellitus (−9.1 95%CI −15.6 to −2.6), anxiety (−8.1 95%CI −16 to −0.2) and degenerative disc disease (−8.6 95%CI −14.1 to −3.2).</div></div><div><h3>Conclusion</h3><div>Pre-operative multimorbidity is associated with worse outcomes after TKA. Patients with pre-operative osteoporosis, anxiety and degenerative disc disease had worse pain and function at 12-months. Surgeons may use these results during discussion with patients about their potential outcome after TKA.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 263-274"},"PeriodicalIF":1.6,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Helix meniscus − A novel anatomical discovery","authors":"Tetsuhiro Hagino ,&nbsp;Ryosuke Koizumi ,&nbsp;Tetsuo Hagino ,&nbsp;Satoshi Ochiai ,&nbsp;Naoto Furuya ,&nbsp;Masanori Wako ,&nbsp;Hirotaka Haro","doi":"10.1016/j.knee.2025.02.030","DOIUrl":"10.1016/j.knee.2025.02.030","url":null,"abstract":"<div><div>Many anatomical variations of the meniscus have been reported. In this report, we present a case of a novel pattern of meniscal morphology showing a helix structure. A 14-year-old boy presented with knee pain without an apparent cause. Arthroscopic surgery was performed, revealing a helical-shaped meniscus on the lateral side, without injury or degeneration. Partial meniscectomy resulted in symptom improvement. A helix meniscus is very rare and should be recognized as a novel anatomical variant. While arthroscopic meniscectomy improved symptoms, careful consideration is needed when determining surgical indications, as long-term effects remain unknown.</div></div>","PeriodicalId":56110,"journal":{"name":"Knee","volume":"54 ","pages":"Pages 240-243"},"PeriodicalIF":1.6,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619851","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}