Reason: assess for medial meniscal tear s/p twisting injury History: pain and swelling MENISCI: There is deformity of the posterior horn of the medial meniscus which may represent degeneration and superficial fraying. There is no fluid-filled unstable tear identified. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is a full-thickness articular cartilage defect along the weightbearing surface of the medial femoral condyle above the body of the meniscus. There is also full-thickness articular cartilage degeneration along the weightbearing surface of the medial femoral condyle above the posterior horn of the meniscus. The lateral tibiofemoral articular cartilage appears relatively spared. There is a full-thickness articular cartilage cleft along the lateral facet of the femoral trochlea, centrally. There is subjective thinning of the patellofemoral articular cartilage.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Full-thickness articular cartilage degeneration and defects most pronounced along the medial tibiofemoral compartment.2. Deformity of the posterior horn of the medial meniscus likely represents a combination of degeneration and superficial fraying. No fluid-filled unstable tear is identified.3. Moderate size joint effusion. Other findings as described.