Female, 53 years old. Eval meniscus, cartilage, s/p knee surgery 1970s. OA MENISCI: The posterior horn of the lateral meniscus is fragmented and loses its normal triangular morphology, compatible with complex tearing. The remainder of the lateral meniscus is extruded and small. The medial meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is full-thickness and near full-thickness cartilage loss involving the lateral femoral condyle measuring approximately 10 mm in mediolateral dimension and 15 mm in AP dimension in the area of the posterior horn of the lateral meniscus. There are additional small foci of high-grade cartilage loss involving the lateral tibial plateau, particularly posteriorly, with slight underlying bone marrow signal abnormality. There is also diffuse cartilage thinning involving the medial femoral condyle and the patellar articular cartilage without focal full-thickness defect identified.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.Complex tearing of the lateral meniscus as described above.2.High-grade cartilage loss involving the lateral femoral condyle and lateral tibial plateau.