40-year-old female with laxity and medial pain. Evaluate MCL and ACL. MENISCI: There is increased signal abnormality within the body and anterior horn of the medial meniscus consistent with intrasubstance degeneration. There is blunting of the free edge of the body of the medial meniscus consistent with a tear with an apparent meniscal fragment extruded superiorly along the medial aspect of the medial femoral condyle (image 18; series 901). The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: Note is made of postsurgical changes of prior ACL graft reconstruction. There is full-thickness articular cartilage degeneration and along the weightbearing portion of the lateral femoral condyle above the posterior horn of the meniscus. There is relative sparing of the medial tibiofemoral compartment. There is a partial-thickness fissuring of the articular cartilage along the medial facet of the patella with delamination. There is superficial fraying of the articular cartilage along the median eminence of the patella.LIGAMENTS: Note is made of postsurgical changes of prior ACL graft reconstruction. The graft appears intact. The PCL appears intact. The MCL appears intact. The LCL appears intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Postsurgical changes of prior ACL graft reconstruction. The graft appears intact.2. Tearing of the body of the medial meniscus with an apparent flipped meniscal fragment situated along the medial femoral condyle.3. Full-thickness articular cartilage defect along the lateral femoral condyle and articular cartilage fissure affecting the patella as described above.4. Moderate-sized joint effusion.