15 year old female with history of pain after volleyball injury. Evaluate for ligamentous or meniscal injury. MENISCI: There is peripheral-based branching linear signal abnormality within the posterior horn and body of the medial meniscus extending to both the tibial and femoral articular surfaces compatible with complex tear. The superior extension is new. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is a mild amount of bone marrow edema about the posterior lateral aspect of the lateral tibial plateau. The articular cartilage is intact with no focal defects.LIGAMENTS: There have been postoperative changes of a prior ACL reconstruction. The mid-fibers of ACL graft are indistinct with a wavy appearance compatible with ACL graft rupture. Lax ACL fibers are seen near the tibial and femoral surfaces. The PCL, MCL, and LCL couplets are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1. Postoperative changes of prior ACL reconstruction with complete rupture of the ACL graft.2. Complex tear of the body and posterior horn of the medial meniscus as above.3. Small joint effusion.