20-year-old female with right knee pain. Evaluate for right knee ACL tear and bucket-handle medial meniscus tear. MENISCI: The medial and lateral meniscus appear intact.ARTICULAR CARTILAGE AND BONE: Note is made of increased bone marrow signal abnormality within the posterior aspect of the medial and lateral tibial plateau consistent with a bone contusions. There is increased signal abnormality on fluid sensitive sequences within the lateral femoral condyle, underlying a lateral notch sign, indicating an impaction fracture/contusion. There is a partial-thickness articular cartilage cleft along the medial facet of the patella with underlying subchondral signal abnormality.LIGAMENTS: There is complete rupture of the ACL through its mid substance fibers. The PCL appears intact. There is increased signal abnormality within the proximal fibers of the lateral collateral ligament proper which may represent a sprain. The LCL appears intact. The MCL appears intact. EXTENSOR MECHANISM: The extensor mechanism appears intact. There is a small amount of fluid within the deep infrapatellar bursa.ADDITIONAL
1. Complete rupture of the ACL with bone contusions as described above.2. Large joint effusion.3. Partial-thickness articular cartilage cleft along the medial facet of the patella.