ArticleArchives of orthopaedic and trauma surgery2023
Meniscal rim instability has a high prevalence and a variable location.
Article in Archives of orthopaedic and trauma surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 4 citations in OpenAlex.
- Risk Factors for Complication and Reoperation in the Treatment of Discoid Lateral Meniscus in Children and Adolescents: A Multicenter Study.Orthopaedic journal of sports medicine · 2026Article
- Bilateral Discoid Medial Menisci in a 52-Year-Old Adult: A Case Report.Journal of orthopaedic case reports · 2025Article
- Anterior Peripheral Rim Instability Is Prevalent in Young, Skeletally Immature Patients With Discoid Lateral Meniscus and Has Favorable Postoperative Outcomes.Arthroscopy, sports medicine, and rehabilitation · 2025Article
- The Anteroposterior Diameter of Complete Discoid Lateral Meniscus Versus the Diameter of Normal Lateral Meniscus: An MRI Study in Adults.Orthopaedic journal of sports medicine · 2025Article
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionMost classification systems for lateral discoid meniscus do not evaluate instability of the meniscal peripheral rim. Considerable variability in the prevalence of peripheral rim instability has been published, and it appears that instability is underestimated. The purpose of this study was: first, to evaluate the prevalence of peripheral rim instability and its location in the symptomatic lateral discoid meniscus, and second, to investigate if patient age or type of discoid meniscus are possible risk factors for instability.
methodsA cohort of 78 knees that underwent operative treatment due to symptomatic discoid lateral meniscus was analyzed retrospectively for the rate and location of peripheral rim instability.
resultsOut of the 78 knees, 57.7% (45) had a complete and 42.3% (33) had an incomplete lateral meniscus. The prevalence of peripheral rim instability in symptomatic lateral discoid menisci was 51.3%, and with 32.5%, the anterior attachment was most commonly affected, followed by the posterior (30%) and central (10%) attachment. 27.5% of the tested menisci were unstable anteriorly and posteriorly. There was no significant difference in the prevalence of rim instability between the type of discoid menisci (complete vs. incomplete), nor was there a significant correlation for age as a risk factor for instability.
conclusionThe discoid lateral meniscus has a high prevalence and variable location of peripheral rim instability. Meniscal rim stability must be tested and addressed cautiously in all parts and in all types of discoid lateral menisci during operative treatment.
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