Female, 60 years old. Knee buckling with + Lachman's MENISCI: There is a predominantly radial tear of the posterior horn of the medial meniscus. The body of the medial meniscus is partially extruded and appears blunted. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is extensive full-thickness articular cartilage loss involving the medial femoral condyle and medial tibial plateau with underlying bone marrow edema and subchondral cyst formation. There is diffuse mild thinning of the lateral compartment articular cartilage, without focal defects identified. There is full-thickness cartilage loss of nearly the entire medial patellar facet with underlying marrow signal abnormality. There is also marked cartilage thinning of the lateral patellar facet.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.High-grade articular cartilage loss involving the medial and patellofemoral articulations as above.2.Tear of the medial meniscus as above.3.The ACL is intact.