74-year-old female with right knee pain and buckling sensation, evaluate for ligamentous injury. MENISCI: The medial meniscus is intact. There is complex multidirectional tearing involving the body and posterior horn of the lateral meniscus (series 10, image 10).ARTICULAR CARTILAGE AND BONE: There is an approximately 10 x 6 mm focus of abnormally low T1 signal along the lateral tibial plateau (series 3, image 17) with overlying full-thickness loss of cartilage compatible with subchondral fracture. Bone marrow signal is otherwise unremarkable. There is an area of full-thickness cartilage loss involving the posterior aspect of the lateral femoral condyle (series 10, image 10) measuring approximately 1.7 cm in the anterior posterior dimension. There is corresponding full thickness cartilage loss involving the posterior aspect of the lateral tibial condyle. There is diffuse mild thinning of the patellofemoral cartilage.LIGAMENTS: The cruciate and collateral ligaments are intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Complex multidirectional tear involving the body and posterior horn of the lateral meniscus.2.Area of full-thickness cartilage loss in the lateral tibiofemoral compartment with associated lateral tibial plateau small subchondral fracture.