Medial left knee pain MENISCI: There is a complex tear of the posterior horn of the medial meniscus consisting of a partial-thickness radial component as well as a horizontal component which extends into the body and to the tibial articular surface. There is low signal intensity adjacent to the root of the posterior horn of the medial meniscus which may represent a displaced flap/fragment. The anterior horn of the medial meniscus is intact. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: There are tricompartmental osteophytes. Subjectively, the articular cartilage of the medial compartment appears slightly thinned but we see no gross fluid-filled defect. There may be slight loss of the articular cartilage along the lateral tibial spine but the remaining articular cartilage of the lateral compartment is relatively intact. There is full-thickness cartilage loss along the lateral patellar facet and lateral femoral trochlea with underlying subchondral cysts and marrow edema. There is a small lobulated collection of signal abnormality in the tibial epiphysis posteriorly which may represent an intraosseous ganglion.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Complex tear of the medial meniscus and tricompartmental osteoarthritis of the knee (most severely affecting the patellofemoral compartment) with other findings described above.