Male 15 years old Reason: s/p Knee dislocation MENISCI: Increased linear signal in the posterior horn of the medial meniscus could represent longitudinal tear. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: Stellate configuration of T2 hyperintensity and T1 hypointensity in the lateral tibial plateau raises question of microtrabecular fracturing. Bone contusion in the lateral femoral condyle.LIGAMENTS: Complete PCL rupture. ACL is intact. MCL and LCL are intact. T2 hyperintense signal in the medial retinaculum could represent injury.EXTENSOR MECHANISM: Patellar ligament is wavy which could be due to laxity. The quadriceps tendon is intact.ADDITIONAL
1.Complete PCL rupture.2.Bone contusion lateral femoral condyle. Possible microtrabecular fracturing of the lateral tibial plateau.3.Marked diffuse soft tissue swelling, most prominent posteriorly.4.Popliteal artery thrombosis.5.Possible longitudinal tear of the posterior horn medial meniscus.