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Bilateral discoid medial menisci: association with bone changes in the tibia
O A Atay1, M N Doral, U Aydingöz
1Department of Orthopedics and Traumatology, Hacettepe University Medical Center, Ankara, Turkey. oaatay@yahoo.com
Summary
This case report details bilateral discoid menisci in an 18-year-old male, a rare condition associated with tibial plateau bone changes. Surgical resection of the anomalous meniscus portion provided successful treatment.
Area of Science:
- Orthopedic Surgery
- Radiology
- Human Anatomy
Background:
- Discoid menisci are congenital anomalies of the knee meniscus, more common in the lateral compartment.
- Bilateral discoid medial menisci are exceptionally rare, with only two prior reports in medical literature.
- Associated bone abnormalities, such as tibial plateau depression, are infrequently documented with this condition.
Observation:
- An 18-year-old male patient presented with bilateral knee pain.
- Magnetic resonance imaging (MRI) revealed bilateral medial discoid menisci and bilateral medial tibial plateau depression (cupping).
- Arthroscopy confirmed the presence of bilateral medial discoid menisci and associated cartilage changes.
Findings:
- This report describes the third documented case of bilateral discoid medial menisci.
- The patient exhibited bilateral medial tibial plateau depression, a rare associated bone change.
- Arthroscopic partial resection of the anomalous discoid meniscus was performed successfully.
Implications:
- This case highlights the importance of considering rare meniscal anomalies in young patients with knee pain and bone changes.
- Early diagnosis and appropriate surgical intervention, such as arthroscopic partial meniscectomy, can lead to favorable outcomes.
- Further research into the etiology and long-term implications of bilateral discoid medial menisci with bone changes is warranted.