Bilateral Symptomatic Discoid Medial Meniscus of the Knee: A Case Report and Review of Literature


Department of Orthopedics, Concord Repatriation General Hospital, Sydney, Australia



A discoid medial meniscus is a rare pathology of the knee joint, and is even rarer when it presents bilaterally with clinical symptoms.

Case Presentation
We present the case of a 38-year-old female with symptomatic bilateral discoid medial meniscus. Magnetic Resonance Imaging (MRI) showed complete discoid meniscus in one knee and incomplete, on the other side. The MRI findings were confirmed on arthroscopy, with horizontal cleavage tear in both knees. Arthroscopic partial meniscectomies of both menisci were performed.

The patient had an excellent functional outcome at the most recent follow-up, with no recurrence of symptoms and full range of movements.