Reason: Assess for lateral meniscus tear History: ROM block, catching and lateral joint line pain. MENISCI: There is extensive signal abnormality throughout the lateral meniscus, indicating complex tearing and severe degeneration. The body of the lateral meniscus appears fragmented. There is mild intrasubstance degeneration of the body and posterior horn of the medial meniscus perhaps with mild surface fraying but no fluid-filled tear.ARTICULAR CARTILAGE AND BONE: There is moderate degeneration of the articular cartilage of the lateral articular facet of the patella and lateral facet of the femoral trochlea. There is also moderate degeneration of the lateral compartment articular cartilage adjacent to the posterior horn of the lateral meniscus. The articular cartilage of the medial compartment is relatively spared. There are small subchondral cysts noted in the tibial plateau and small tricompartmental osteophytes.LIGAMENTS: The medial collateral ligament appears intact although spur formation at the femoral attachment of the MCL may represent old injury. The ACL, PCL, and LCL appear intact.EXTENSOR MECHANISM: There is a large ossicle in the distal patellar tendon but otherwise the extensor mechanism appears intact..ADDITIONAL
1. Extensive tearing and degeneration of the lateral meniscus.2. Osteoarthritis as described above.3. Small joint effusion, other findings as described above.