Medial and lateral discoid meniscus in the same knee

Area of Science:

• Orthopedic Surgery
• Knee Anatomy
• Meniscal Pathologies

Background:

• A discoid meniscus is a congenital anomaly where the meniscus has a disc-like shape instead of its usual crescent form.
• While discoid menisci can occur medially or laterally, the simultaneous presence of both in a single knee is exceptionally rare.

Observation:

• This report details two distinct cases of patients presenting with concurrent medial and lateral discoid menisci within the same knee joint.
• These cases represent a significant addition to the limited existing literature on this specific anatomical variation.

Findings:

• The study documents two new instances of the rare condition of medial and lateral discoid meniscus occurring together in one knee.
• This finding doubles the previously reported number of such cases in the medical literature.

Implications:

• Increased awareness of this rare condition is crucial for accurate diagnosis and appropriate management in orthopedic practice.
• Further research may be warranted to understand the etiology and clinical significance of bilateral discoid menisci.