52-year-old male patient with left knee pain. Evaluate for medial meniscus repair and healing of trochlear microfracture. MENISCI: There is increased T2 signal within the body and posterior horn of the medial meniscus and the medial meniscus is diminutive in size, these findings are compatible with prior meniscal tear and meniscectomy. There is no new tear in the medial or lateral menisci.ARTICULAR CARTILAGE AND BONE: There is inhomogenous increased T2 signal intensity in the articular cartilage of the trochlea, compatible with history of microfracturing with production of fibrocartilage. There are no focal chondral defects identified.LIGAMENTS: Again seen is a chronic partial tear of the anterior cruciate ligament. The posterior cruciate ligament, medial collateral ligament, lateral collateral ligament complex, and patellar retinacula are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Findings consistent with prior surgery in the medial meniscus without new meniscal tear identified.2.Inhomogeneity of the femoral trochlea compatible with prior microfracturing and production of fibrocartilage. No focal chondral defect is identified.3.Chronic partial tear of the anterior cruciate ligament.