Knee pain and instability MENISCI: There is abnormal morphology and signal intensity of the posterior horn of the lateral meniscus suggesting a small obliquely oriented tear. The medial meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is depression of the lateral femoral condyle consistent with an impaction fracture and there is a small full-thickness defect in the overlying articular cartilage. Additional near full-thickness articular cartilage loss is seen of the lateral femoral condyle posteriorly. There is marrow edema within the underlying lateral femoral condyle as well as the lateral tibial plateau posteriorly. The articular cartilage of the patellofemoral and medial compartments is preserved.LIGAMENTS: The ACL is ruptured. The PCL is intact. The MCL is ruptured. The LCL is intact. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Ruptured ACL.2. Ruptured MCL.3. Abnormal signal intensity and morphology of the posterior horn of the lateral meniscus concerning for small tear.4. Osteochondral impaction injury of the lateral femoral condyle with small areas of full-thickness and near full-thickness articular cartilage loss. Associated marrow contusions are noted within the lateral femoral condyle and lateral tibial plateau.5. Large joint effusion with small lipohemarthrosis.