28-year-old female. ACL repair in 2006. Medial knee pain instability. Evaluate for meniscus tear. MENISCI: Globular signal abnormality in the posterior horn of a diminutive posterior horn of the medial meniscus, likely representing degenerative tearing. The lateral meniscus is intact without evidence of a tear.ARTICULAR CARTILAGE AND BONE: Fraying of the patellar cartilage at the apex with partial thickness defects. Tibiofemoral compartment cartilage is intact.LIGAMENTS: Postsurgical findings of ACL repair; the graft is not visualized at its femoral attachment consistent with a tear. PCL, MCL, and LCL are intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. ACL graft tear.2. Degenerative tearing of the posterior horn of the medial meniscus.3. Chondromalacia of the apex of the patella with partial thickness defects.