Reason: meniscus tear, ligament injuries History: significant swellings of the knee and pain. Evaluation is limited due to patient motion artifact.MENISCI: Attenuation of the posterior horn of the medial meniscus likely reflects chronic attritional tearing. Signal abnormality within the posterior horn and body of the medial meniscus extending to the tibial articular surface likely reflects additional undersurface tearing. There is slight medial extrusion of the body of the medial meniscus. The anterior horn of the medial meniscus is relatively intact.The lateral meniscus appears normal for age.ARTICULAR CARTILAGE AND BONE: Moderate to severe degeneration of the articular cartilage of the medial tibiofemoral compartment with foci of full-thickness cartilage loss concentrated along the weightbearing portions. Edema-type signal within the anterior aspect of the medial tibial plateau and medial femoral condyle likely is degenerative in etiology, although could conceivably represent bone contusions.Much of the lateral facet of the patella is devoid of articular cartilage with relatively mild degeneration of the medial facet articular cartilage. Near full-thickness to full-thickness degeneration of the lateral facet of the femoral trochlea with underlying subchondral cyst formation and relatively mild degeneration of the articular cartilage of the medial facet of the femoral trochlea.Moderate degeneration of the articular cartilage of the lateral tibial plateau particularly along the tibial spine with underlying subchondral cyst formation.Tricompartmental osteophytes.LIGAMENTS: The cruciate and collateral ligaments are intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Osteoarthritis as described above, most severely affecting the medial tibiofemoral and patellofemoral compartments with medial meniscal tearing as described above.2.The ligaments appear intact.