61-year-old male with left knee pain and swelling status post quadriceps tendon repair. Injured knee in therapy. Evaluate for re-tear. MENISCI: The lateral meniscus appears intact. There is globular increased signal abnormality within the posterior horn of the medial meniscus consistent with intrasubstance degeneration. There is linear increased signal within the posterior horn of the medial meniscus which extends to the tibial articular surface indicating a horizontal tear. The anterior horn appears intact.ARTICULAR CARTILAGE AND BONE: There is partial-thickness articular cartilage degeneration along the lateral facet of the patella. No full-thickness or near full-thickness articular cartilage defects are identified.LIGAMENTS: The cruciate collateral ligaments appear intact. EXTENSOR MECHANISM: Note is made of postsurgical changes consistent with the stated history of prior quadriceps tendon repair. There is a full-thickness near complete rupture of the quadriceps tendon with approximately 2.5 cm of proximal retraction. There is thickening and intermediate signal intensity within the retracted quadriceps tendon indicating moderate to severe tendinosis. The patellar tendon appears intact. There is thickening and intermediate signal intensity within the proximal fibers of the patellar tendon indicating mild tendinosis.ADDITIONAL
Near complete re-tear of the quadriceps tendon with retraction as described above. Large joint effusion. Other findings as described above.