Reason: question avascular necrosis History: pain in knees. MENISCI: The medial and lateral menisci are intact.ARTICULAR CARTILAGE AND BONE: Curvilinear bands of signal abnormality within the medial and lateral femoral condyles as well as the lateral aspect of the patella are compatible with avascular necrosis. The overlying cartilage appears intact. We see no subchondral fracture or articular surface collapse. No edema is associated with osteonecrosis. The articular cartilage appears normal.LIGAMENTS: The anterior cruciate ligament and posterior cruciate ligament are intact. The medial collateral ligament is intact. The lateral collateral ligament complex is intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
Uncomplicated avascular necrosis and other findings as described above.