Left knee pain and swelling. Evaluate for meniscus tear versus a loose body. MENISCI: There is a bucket handle tear of the medial meniscus with the displaced fragment along the medial tibial spine.Again seen is attenuation and irregularity of the free edge of the posterior horn of the lateral meniscus that likely represents a combination of prior surgery and chronic tearing. There is also a partial thickness radial tear of the body of the lateral meniscus. These findings are similar to those seen on the prior study. ARTICULAR CARTILAGE AND BONE: Again seen is full thickness loss of articular cartilage along the lateral femoral condyle above and anterior to the torn posterior horn of the lateral meniscus appearing similar to that seen on the prior study with mild signal abnormality in the underlying subchondral bone. Also again seen is a depression of the articular surface of the lateral femoral condyle just above the anterior horn of the lateral meniscus compatible with an old impaction fracture with focal loss of overlying cartilage. Articular cartilage of the medial and patellofemoral compartments is relatively intact. LIGAMENTS: Again seen are postoperative changes of ACL reconstruction using a bone-patellar-tendon-bone graft. The graft appears slightly thickened but intact. The posterior cruciate ligament is intact. The medial and lateral collateral ligamentous complexes are intact.EXTENSOR MECHANISM: There is mild thickening of the proximal patellar tendon and mild edema within the inferior pole of the patella appearing similar to the prior study. ADDITIONAL
1.New bucket handle tear of the medial meniscus 2.Additional findings as described above appear similar to the prior study.