Female, 27 years old. Status post ACL reconstruction, possible medial and lateral meniscectomies in 2004 at OSH. Pain. MENISCI: There is branching signal abnormality within the posterior horn of the medial meniscus extending to both the tibial and femoral articular surfaces, indicating a complex tear. The tear does not appear to fill with fluid, and it is possible that this is a chronic healed tear. There is mild extrusion of the body of the medial meniscus. There is blunting of and abnormal signal within the posterior horn of the lateral meniscus, likely representing a combination of prior surgery and tearing. There is also vertically oriented signal abnormality within the anterior horn of the lateral meniscus extending to the tibial articular surface, indicating a tear of uncertain chronicity.ARTICULAR CARTILAGE AND BONE: There is tricompartmental cartilage degeneration with multiple sites of full thickness degeneration, most notably along the weightbearing portion of the medial femoral condyle. There are multiple sites of subchondral edema that are presumably degenerative.LIGAMENTS: The patient has undergone ACL reconstruction. The graft appears intact, although there is bowing of the intraarticular portion of the graft and increased signal within the anterior fibers which may represent impingement. The PCL is intact. There is thickening of and edema along the proximal fibers of the MCL, which could represent a sprain in the proper clinical context. The lateral collateral ligament complex is intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Surgical changes of ACL reconstruction with possible impingement of the anterior portion of the graft.2.Medial and lateral meniscal tears and probable postsurgical changes as described above. Please note, we cannot determine the chronicity of these tears.3.Tricompartmental osteoarthritis.4.Possible sprain of the medial collateral ligament.5.Large joint effusion.