Medial Discoid Meniscus: A Rare Condition. Case Report and Treatment Considerations
Abstract
Medial discoid meniscus is an extremely rare condition, with a reported incidence of 0.12 -0.3%. It results from early developmental abnormalities that produce a thickened meniscus, compromising function and stability and predisposing to injury. Magnetic resonance imaging (MRI) is the main diagnostic tool, while arthroscopy is considered the gold standard for confirmation. Treatment depends on clinical symptoms and associated injuries, and may be conservative or surgical, with an emphasis on preserving as much meniscal tissue as possible. We report the case of a 14-year-old patient with left knee pain. MRI findings confirmed thediagnosis of medial discoid meniscus. The patient underwent arthroscopic saucerization with a favorable postoperative outcome.Downloads
References
Masquijo JJ, Bernocco F, Porta J. Menisco discoide en niños y adolescentes: correlación entre la morfología y la
presencia de lesiones. Rev Esp Cir Ortop Traumatol 2019;63:24-8. https://doi.org/10.1016/j.recot.2018.08.002
Yang X, Shao D. Bilateral discoid medial meniscus. Two case reports. Medicine (Baltimore) 2019;98:e15182.
https://doi.org/10.1097/MD.0000000000015182
Campbell AL, Pace JL, Mandelbaum BR. Discoid lateral meniscus. Curr Rev Musculoskelet Med 2023;16:154-161.
https://doi.org/10.1007/s12178023-09824-4
Tyler PA, Jain V, Ashraf T, Saifuddin A. Update on imaging of the discoid meniscus. Skeletal Radiol 2022;51(5):935-56. https://doi.org/10.1007/s00256-021-03910-9
Chico-Carpizo F, Arauz de Robles S, Alonso-Hernández J. Symptomatic bilateral medial discoid meniscus treated
with arthroscopic meniscal remodeling: clinical case. Rev Esp Cir Ortop Traumatol (Engl Ed) 2020;64(5):350-4.
https://doi.org/10.1016/j.recot.2020.02.005
Saavedra M, Sepúlveda M, Jesús Tuca M, Birrer E. Discoid meniscus: current concepts. EFORT Open Rev 2020;5(7):371-9. https://doi.org/10.1302/2058-5241.5.190023
Panchal HB, Bismil Q, Malhan K. Discoid meniscus: a review of the literature. Curr Rev Musculoskelet Med 2020;13(5):633-41. https://doi.org/10.1007/s12178-020-09653-4
Kim SJ, Kim HK, Lee YS, Chun YM. Symptomatic discoid meniscus in children: assessment of the mechanical axis of the lower extremity and a novel MRI classification based on stability. Knee Surg Sports Traumatol Arthrosc
;28(3):869-76. https://doi.org/10.1007/s00167-019-05587-8
Yoo WJ, Jang WY, Park MS, Chung CY, Cheon JE, Cho TJ, et al. Arthroscopic treatment for symptomatic discoid
meniscus in children: Midterm outcomes and prognostic factors. Arthroscopy 2015;31(12):2327-34. https://doi.org/10.1016/j.arthro.2015.06.032
Yamasaki S, Hashimoto Y, Takigami J, Terai S, Takahashi S, Nakamura H. Risk factors associated with knee joint
degeneration after arthroscopic reshaping for juvenile discoid lateral meniscus. Am J Sports Med 2017;45(3):570-7. https://doi.org/10.1177/0363546516677077
Manuscript acceptance by the Journal implies the simultaneous non-submission to any other journal or publishing house. The RAAOT is under the Licencia Creative Commnos Atribución-NoComercial-Compartir Obras Derivadas Igual 4.0 Internacional (CC-BY-NC.SA 4.0) (http://creativecommons.org/licences/by-nc-sa/4.0/deed.es). Articles can be shared, copied, distributed, modified, altered, transformed into a derivative work, executed and publicly communicated, provided a) the authors and the original publication (Journal, Publisher and URL) are mentioned, b) they are not used for commercial purposes, c) the same terms of the license are maintained.
In the event that the manuscript is approved for its next publication, the authors retain the copyright and will assign to the journal the rights of publication, edition, reproduction, distribution, exhibition and communication at a national and international level in the different databases. data, repositories and portals.
It is hereby stated that the mentioned manuscript has not been published and that it is not being printed in any other national or foreign journal.
The authors hereby accept the necessary modifications, suggested by the reviewers, in order to adapt the manuscript to the style and publication rules of this Journal.


