Knee injury, swelling. MENISCI: There is a complex tear with both vertical and horizontal components of the posterior horn and posterior aspect of the body of the medial meniscus. The lateral meniscus is intact. ARTICULAR CARTILAGE AND BONE: There is denuding of the articular cartilage of the lateral patellar facet with underlying subchondral edema which extends to the median eminence. There is significant thinning of the articular cartilage of the femoral trochlea with a region of full-thickness cartilage loss. There is complete loss of articular cartilage of the anterior and near-complete loss of the weight-bearing portion articular cartilage of the lateral femoral condyle up to above the posterior horn of the lateral meniscus. There is thinning of the posterior articular cartilage of the lateral femoral condyle. There is complete loss of the cartilage of the weight-bearing portion of the medial femoral condyle above the posterior horn with significant thinning of the remaining articular cartilage. Additionally there is complete loss of articular cartilage of the medial tibial plateau from the mid to posterior portions. Tricompartmental osteophytes are noted.There is increased T2 signal within the posterior medial tibial plateau with a linear component of low T1 and T2 signal which most likely represents a insufficiency fracture with surrounding edema. LIGAMENTS: The collateral and cruciate ligaments are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1. Insufficiency fracture of the medial tibial plateau.2. Complex tear of the medial meniscus.2. Chondromalacia is described above.