29-year-old male with knee pain evaluate for ACL or meniscus injury MENISCI: There is a tear/fraying of the inner margin of the posterior horn of the lateral meniscus with an overlying articular cartilage defect described below. The medial meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is a focal full-thickness defect of the articular cartilage of the posterior lateral femoral condyle overlying the posterior horn of the lateral meniscus which measures approximately 4 mm in AP dimension and 8 mm in transverse dimension with underlying marrow signal changes. There is a lateral notch along the anterior femoral condyle likely from prior injury and minimal edema in the posterolateral tibial plateau.LIGAMENTS: The ACL is fully disrupted. The PCL is intact. The medial and lateral collateral ligaments appear intact.EXTENSOR MECHANISM: The quadriceps tendon and patellar tendon are intact.ADDITIONAL
1. ACL tear, likely subacute to chronic.2. Inner margin tear/fraying of the posterior horn of the lateral meniscus with overlying focal articular cartilage defect along the posterior lateral femoral as described above.