Reason: eval for torn meniscus, foreign body History: right knee pain and locking MENISCI: There is medial extrusion of the body of the medial meniscus. There is globular increased signal intensity within the body of the medial meniscus representing intrasubstance degeneration with blunting of the extruded meniscus likely representing degenerative tearing. The intrasubstance degeneration and degenerative tearing extends posteriorly to involve the posterior horn of the medial meniscus with relative sparing of the anterior horn. There is globular intrasubstance signal within the lateral meniscus indicating intrasubstance degeneration with linear extension of the signal abnormality to the femoral articular surface indicating a horizontal tear of the body and posterior horn.ARTICULAR CARTILAGE AND BONE: There is severe osteoarthritis of the medial tibiofemoral compartment with the weightbearing surface of the medial femoral condyle and medial tibial plateau essentially devoid of articular cartilage. There are also full-thickness cartilage defects involving the patellofemoral joint. There is relatively mild degeneration of the articular cartilage of the lateral compartment. No bone marrow signal abnormalities are identified.LIGAMENTS: Increased signal intensity within the ACL likely represents mucoid degeneration. The PCL and collateral ligaments are intact.EXTENSOR MECHANISM: The quadriceps and patellar tendons are intact.ADDITIONAL
Limited study showing severe osteoarthritis, particularly affecting the medial and patellofemoral compartments, with degeneration and tearing of both menisci and other findings as above. We see no foreign body.