56-year-old male with medial knee pain. Evaluate medial meniscus. MENISCI: There is blunting of the body and posterior horn of the medial meniscus. There is linear increased signal abnormality which extends to the tibial and femoral articular surface. These findings are consistent with complex tearing. The lateral meniscus appears intactARTICULAR CARTILAGE AND BONE: There is full-thickness articular cartilage degeneration along the weightbearing surface of the medial femoral condyle overlying the body of the meniscus with associated bone marrow edema or signal abnormality, likely degenerative in etiology. There is also articular cartilage delamination along the weightbearing surface of the medial femoral condyle. There is full-thickness articular cartilage degeneration along the medial aspect of the tibial plateau beneath the body of the meniscus with bone marrow edema in the surrounding area. There is relative sparing of the lateral compartment. There is superficial fraying of the articular cartilage of the medial lateral facets of the patella. There is a 10 mm focus of low signal intensity along the posterior aspect of the femur which may represent a loose body within the joint, appearing similar to the findings on prior radiographs.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Complex tearing of the medial meniscus.2. Full-thickness articular cartilage degeneration as described above.3. 10 mm loose body within the joint space and other findings as described above.