Left knee pain and swelling. History of prior ACL reconstruction. MENISCI: The lateral meniscus appears intact. There is complex multidirectional tearing with fragmentation involving the posterior horn of the medial meniscus which has progressed compared to the prior examination. There is blunting of the body of the medial meniscus. The anterior horn of the medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: Postsurgical changes of ACL reconstruction are present. Bone marrow signal intensity is otherwise within normal limits. There is mild diffuse thinning of the tibiofemoral articular cartilage without focal full-thickness defects. The previously described full-thickness cartilage defect of the lateral tibial plateau is not seen on this examination. There is moderate thinning and degeneration of the articular cartilage of the patellofemoral compartment without focal full-thickness defects.LIGAMENTS: The fibers of the ACL reconstruction graft appear grossly intact. The PCL is intact. The collateral ligaments are intact. EXTENSOR MECHANISM: Aside from postsurgical changes of quadriceps tendon harvest, the extensor mechanism is within normal limits.ADDITIONAL
1.Complex tearing and fragmentation of the posterior horn of the medial meniscus, progressed from prior.2.ACL graft appears intact.3.Additional findings as described above.