Knee pain. MENISCI: The menisci appear intact.ARTICULAR CARTILAGE AND BONE: Near full-thickness cartilage loss involving the medial femoral condyle. Full-thickness cartilage loss involving the lateral patellar facet with underlying subchondral cyst formation. Near full-thickness cartilage loss with associated fissuring involving the medial patellar facet. Focus of reactive subchondral bone marrow edema involving the lateral tibial plateau.LIGAMENTS: The ACL and PCL appear intact. The lateral collateral ligament complex appears intact. Fluid surrounds the medial collateral ligament compatible with a sprain. The fibers of the MCL appear intact.EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
Degenerative arthritic changes most severe at the lateral patellar compartment where there is full-thickness cartilage loss. MCL sprain. Small joint effusion.