Bilateral knee pain and locking. MENISCI: There is blunting of the free edge of the posterior horn and body of the lateral meniscus (series 601, image 22) compatible with a radial tear. The medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: A small subchondral cyst is present deep to the tibial spine with adjacent reactive bone marrow edema. Bone marrow signal is otherwise within normal limits including scattered small foci of red marrow. Tricompartmental osteophytes are present. There is thinning of the medial and lateral patellar cartilage without focal defects. Tibiofemoral cartilage is grossly intact.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Right knee with radial tear of the body and posterior horn of the lateral meniscus, moderate joint effusion, popliteal cyst, and degenerative arthritic changes.2.Left knee with ACL tear and associated posterior tibial bone contusion, large joint effusion, popliteal cyst, and degenerative arthritic changes.