Medial Discoid Meniscus: A Rare Case Report.

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Abstract

Conflict of interest statement: The authors have declared that no competing interests exist. 14. EFORT Open Rev. 2020 Aug 1;5(7):371-379. doi: 10.1302/2058-5241.5.190023. eCollection 2020 Jul. Discoid meniscus: current concepts. Saavedra M(1), Sepúlveda M(1)(2)(3), Jesús Tuca M(4)(5)(6), Birrer E(1)(2). Author information: (1)Universidad Austral de Chile, Valdivia, Chile. (2)AO Foundation, PAEG Expert Group, Davos, Switzerland. (3)Hospital Base de Valdivia, Valdivia, Chile. (4)Clinica Alemana, Santiago, Chile. (5)Universidad del Desarrollo, Santiago, Chile. (6)Hospital Clínico Mutual de Seguridad, Santiago, Chile. Discoid meniscus is the most frequent congenital malformation of the menisci, and primarily affects the lateral meniscus; it is highly prevalent in the Asian population.The anatomic, vascular, and ultrastructural features of the discoid meniscus make it susceptible to complex tears.Discoid meniscus anomalies are described according to their shape; however, there is consensus that peripheral stability of the meniscus should also be defined.Initial workup includes plain X-rays and magnetic resonance imaging, while arthroscopic evaluation confirms shape and stability of the meniscus.Clinical presentation is highly variable, depending on shape, associated hypermobility, and concomitant meniscal tears.Treatment seeks to re-establish typical anatomy using saucerization, tear reparation, and stable fixation of the meniscus. Cite this article: EFORT Open Rev 2020;5:371-379. DOI: 10.1302/2058-5241.5.190023. © 2020 The author(s). DOI: 10.1302/2058-5241.5.190023 PMCID: PMC7407869