Reason: L knee meniscus tear History: Left knee pain The high definition knee coil was not utilized presumably related to the patient's body habitus. The standard knee coil was utilized instead resulting in slightly suboptimal image quality.MENISCI: There is a complex tear of the body and posterior horn of the medial meniscus which includes an abrupt contour defect of the inferior half of the body of the meniscus, posteriorly, suggesting a displaced flap fragment as well as horizontal signal abnormality within the posterior horn which extends to the tibial articular surface. The posterior horn of the medial meniscus also appears attenuated. The anterior horn appears relatively spared. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is full thickness degeneration of the articular cartilage along the median eminence of the patella with additional degeneration along the medial and lateral facets. There is thinning of the articular cartilage of the medial facet of the femoral trochlea. There is full-thickness degeneration of the articular cartilage along the weightbearing surface of the medial femoral condyle and medial tibial plateau with edema type signal abnormality within the underlying bone and subchondral cyst formation. There is relatively mild degeneration of the articular cartilage of the lateral compartment with mild edema type signal within the lateral tibial spine.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Complex tear of the medial meniscus.2. Osteoarthritis of the knee most severely affecting the medial tibiofemoral and patellofemoral articulations.3. Moderate sized joint effusion and Baker's cyst.