21-year-old male with medial knee pain after valgus injury. MENISCI: The medial and lateral meniscus appear intact.ARTICULAR CARTILAGE AND BONE: No full-thickness or near full-thickness articular cartilage defects are identified. Note is made of bone marrow signal abnormality within the anterior aspect of the lateral tibial plateau as well as within the lateral aspect of the lateral femoral condyle consistent with contusions. Additionally, note is made of linear decreased signal abnormality within the lateral aspect of the proximal tibial plateau, as well as cortical irregularity, suspicious for a nondisplaced subchondral fracture of the tibial plateau (image 14 and 15; series 701).LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
Findings consistent with a nondisplaced subchondral fracture of the anterior aspect of the lateral tibial plateau. Bone contusion affecting the lateral femoral condyle.