Reason: eval for MPFL rupture History: instability MENISCI: Menisci are intact bilaterally.ARTICULAR CARTILAGE AND BONE: There is increased T2 signal within the central and anterior aspects of the lateral tibial plateau and lateral femoral condyle which likely represent bone contusions. There is linear T1 signal along the lateral aspect of the lateral femoral condyle which likely represents an acute subchondral fracture. There is an 8 mm full-thickness defect in the associated articular cartilage of the lateral femoral condyle. The remaining articular cartilage is intact.LIGAMENTS: PCL is intact. Fraying of the ACL may indicate partial tearing. The meniscal femoral ligaments are intact.EXTENSOR MECHANISM: Extensor mechanism is intact.ADDITIONAL
Partial thickness tearing of the ACL with bone contusions and subchondral fracture along the lateral femoral condyle.