56-year-old male with history of left knee arthroscopy, patellofemoral femoral trochlea MFC, medial meniscectomy with ongoing pain. Please evaluate for healing microfracture or new chondral injury/meniscal tear. MENISCI: Again demonstrated is blunting of the posterior horn/body of the medial meniscus from prior postsurgical change along with likely degeneration/tearing. Linear increased signal abnormality with involvement of the femoral articular surface within the posterior horn is not significantly changed from prior examination, remaining suspicious for horizontal tear. The lateral horn appears intact..ARTICULAR CARTILAGE AND BONE: Partial-thickness articular cartilage degeneration along the medial femoral condyle, especially of the femoral aspect appears minimally advanced in comparison to prior examination. The lateral compartment is unchanged from prior. Again demonstrated is full-thickness chondromalacia along the medial patella with degeneration the femoral aspect of the patellofemoral articular cartilage.LIGAMENTS: Increased amounts of abnormal T2 signal and thickening of the anterior cruciate ligament, especially within the proximal aspect likely represents further mucoid degeneration/tearing of the ACL. The PCL, MCL, and LCL complex appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact. A small Baker's cyst is again demonstrated.ADDITIONAL
1. Blunting of the posterior horn and body of the meniscus representing sequelae of degeneration, postsurgical change, prior tearing that is not significantly changed in comparison to prior examination.2. Osteoarthritis of the knee with articular cartilage degeneration minimally advanced in the medial tibiofemoral compartment.3. Mucoid degeneration/tearing of the ACL has significantly advanced in comparison to prior examination.4. Moderate joint effusion, increased from prior.