57-year-old male patient status post fall downstairs with pain and swelling. Evaluate for ligamentous or tendon injury. MENISCI: There is slight abnormal increased intrasubstance signal intensity in the body and posterior horn of the medial meniscus, compatible with degeneration. There is no discrete tear in the medial or the lateral meniscus.ARTICULAR CARTILAGE AND BONE: There are no fluid-filled cartilage defects. There are subchondral reactive marrow changes in the posterior aspect of the lateral femoral condyle and posterior lateral tibial plateau, compatible with contusions. Small tricompartmental osteophytes are noted.LIGAMENTS: There is tearing of the superior fibers of the medial collateral ligament. Additionally, there is rupture of the anterior cruciate ligament. The posterior cruciate ligament, lateral collateral ligament complex, and patellar retinacula are intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Rupture of the anterior cruciate ligament with associated bone contusions in the posterior lateral femoral condyle and lateral tibial plateau.2.Medial collateral ligament tear.3.Joint effusion and loose body, as above.4.Degeneration in the body and posterior horn of the medial meniscus without discrete meniscal tear.