27-year-old male with 4 week history of right knee pain status post ACL repair 5 years ago, evaluate graft MENISCI: The medial meniscus is intact. There is attenuation of the posterior horn of the lateral meniscus which may reflect chronic attritional tearing or prior partial meniscectomy. Linear signal abnormality within the posterior horn extending to the articular surface may represent tearing or intrasubstance degeneration that pre-existed the partial meniscectomy. There is also blunting of the free edge of the body of the lateral meniscus with focal signal intensity which may reflect sequela of prior partial meniscectomy or degenerative radial tearing. The anterior horn of the lateral meniscus is intactARTICULAR CARTILAGE AND BONE: There is a focal full-thickness defect in the articular cartilage along the weightbearing portion of the lateral femoral condyle measuring 5 mm with associated edema in the underlying lateral femoral condyle. The remainder of the articular cartilage is intact.LIGAMENTS: There are findings of ACL reconstruction and the graft appears intact with small adjacent ganglia which are not necessarily of any clinical significance. Heterogeneous, intermediate to low signal intensity lesion along the anterior fibers of the intra-articular portion of the graft may represent residual fibers of a torn native ACL and/or focal arthrofibrosis. The MCL and lateral collateral ligament complexes are intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Postoperative changes of ACL reconstruction. The graft appears intact, although heterogeneous signal intensity along the anterior fibers of the intra-articular portion of the graft may represent residual fibers of a torn native ACL and/or focal arthrofibrosis.2.Focal full-thickness defect in the articular cartilage along the lateral femoral condyle with edema in the underlying bone which may represent the source of the patient's pain. 3.Meniscal abnormalities as described above which may reflect either chronic degenerative tearing and/or partial meniscectomy changes.