Male, 53 years old. Left knee pain MENISCI: There is a horizontal tear of the posterior horn of the medial meniscus extending to the undersurface. A more vertically oriented tear is noted through the anterior horn of the medial meniscus, and the body of the medial meniscus shows extensive degeneration and medial displacement. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is near complete articular cartilage loss involving the medial femoral condyle and medial tibial plateau, with extensive underlying marrow edema of both the femur and tibia. Lateral tibiofemoral cartilage is intact. There is minimal cartilage fraying of the medial patellar facet.LIGAMENTS: The cruciate and collateral ligaments are intact. Increased signal adjacent to the medial collateral ligament is likely due to underlying meniscal pathology. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.Extensive complex tearing of the medial meniscus as described above.2.Near complete articular cartilage loss of the medial femoral condyle and medial tibial plateau with extensive underlying bone marrow edema.