18-year-old male with history of left knee pain. Evaluate for ACL/PCL tear. MENISCI: The lateral meniscus is completely torn with the anterior horn avulsed from its insertion on the tibia and flipped posteriorly with the meniscal fragments located in the posterior aspect of the lateral tibiofemoral joint space. There is longitudinal and branching fluid signal abnormality within a body of the medial meniscus extending to the articular surfaces compatible with a complex tear.ARTICULAR CARTILAGE AND BONE: Artifact from intramedullary rod limits evaluation of the distal tibia. There is edema type signal about the anterolateral aspect of the tibial plateau and the medial femoral condyle. The articular cartilage is relatively intact. There is no evidence of fracture.LIGAMENTS: There is complete disruption of the PCL. The majority of the ACL fibers are not well visualized with a few intact fibers compatible with at least a partial tear. The fibular femoral ligament is not visualized and may be also torn. The IT band and biceps femoris tendon are intact. The MCL is unremarkable.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Complex and extensive tearing of the lateral meniscus as above.2.Longitudinal tear of the body of the medial meniscus.3.Complete tear of the PCL with a high grade partial tear of the ACL.4.Nonvisualized fibular femoral ligament may indicate tear.5.Other findings as above.