30 year-old female. Status post left ACL injury, gait abnormality. Pain. MENISCI: Medial and lateral menisci are normal in signal intensity and morphology without evidence of a tear.ARTICULAR CARTILAGE AND BONE: Bone marrow signal intensity is within normal limits without evidence of contusion or fracture. Diffuse mild thinning of the patellofemoral compartment cartilage without a full thickness defect. LIGAMENTS: Abnormal intermediate signal intensity and marked thinning of the superior half of the ACL consistent with a chronic tear. Perhaps a few fibers remain intact. MCL, LCL, and PCL are intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Findings consistent with a chronic tear of the ACL near its femoral insertion.