37 year old female with left knee pain, 8 weeks status post lateral meniscus repair. Evaluate for retear of the lateral meniscus, limited ROM. MENISCI: There is branching signal within the posterior horn and posterior aspect of the body of the lateral meniscus which extends to the femoral and tibial articular surface as well as the peripheral fibers of the meniscus compatible with a complex tear, appearing similar to the prior study. Although it is impossible for us to exclude a re-tear, this particular tear is of intermediate signal intensity and does not contain fluid, arguing against a retear. Best seen on sagittal image 26 of series 4 and sagittal image 27 of series 6, however, is a small focus of increased signal intensity within the undersurface fibers of the body of the meniscus that is situated slightly more anterior than the aforementioned tear and was not clearly evident on the prior study. There is also a vertically oriented linear band of high signal intensity traversing the body of the lateral meniscus as seen on image 19 of series 8 at the red-white zone that was also not clearly seen on the prior study. These findings are suggestive of a new tear of the body of the lateral meniscus. There is mild intrasubstance degeneration in the anterior horn of the lateral meniscus but no definite tear is evident. The medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: We see no fluid-filled articular cartilage defects. We see no bone contusions.LIGAMENTS: The patient is status post ACL reconstruction. The graft appears intact. There is intermediate signal intensity along the anterior margin of the graft which may represent synovitis or fibrosis, but is of questionable current clinical significance. The PCL, MCL and LCL appear intact.EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Findings suggestive of a new tear of the body of the lateral meniscus as described above.2. Postoperative changes of a prior ACL reconstruction as described above.