Reason: TFCC tear after distal radius fx History: pain and popping BONES: There is abnormal signal intensity within the distal radius indicating a comminuted, intra-articular fracture with fragments in near anatomic alignment. The fracture through the tip of the ulnar styloid is better visualized on prior radiographs, but what we suspect is the fracture fragment appears displaced distally by 2 to 3 mm. There is a small ossicle dorsal to the capitate adjacent to the dorsal margin of the lunate, which may reflect old trauma. Mild osteoarthritis affects the scaphotrapezoid articulation.TRIANGULAR FIBROCARTILAGE COMPLEX: Although we see no fluid signal intensity traversing the articular disc of the triangular fibrocartilage complex, there is heterogeneous signal intensity of the medial half of the articular disc and poor definition of the lamina. Furthermore, the medial fibers appear displaced distally along with the ulnar styloid fracture fragment. We suspect that this represents degeneration and edema combined with at least partial-thickness tearing medially, although it is possible that the disc is completely torn at this site with the gap filled with granulation tissue. LIGAMENTS: Linear increased signal intensity separates the membranous portion of the scapholunate ligament from the scaphoid, indicating a tear. We suspect that the dorsal and volar components of the ligament are intact. The lunotriquetral ligament appears intact. TENDONS: Mild increased signal intensity within the extensor carpi ulnaris tendon suggests mild tendinosis. The remaining tendons appear intact.ADDITIONAL
1. Fracture of the distal radius and tip of the ulnar styloid.2. Although we see no fluid completely traversing the triangular fibrocartilage complex, heterogeneous signal within the medial half of the articular disc and poor definition of the lamina suggests degeneration and edema combined with at least partial-thickness tearing medially, although it is possible that the disc is completely torn at this site with the resultant gap filled with granulation tissue. 3. Other findings as above.