Evaluate for TFCC injury or other ligamentous injury, presents with DRUJ instability. LIGAMENTS: No significant abnormality is noted. In particular, the scapholunate and triquetrolunate ligaments are intact.TRIANGULAR FIBROCARTILAGE COMPLEX: The triangular fibrocartilage complex is intact. There is slightly increased signal intensity within the TFCC possibly representing a sprain, however no fluid-filled tear is seen.TENDONS: The flexor and extensor tendons of the wrist are intact and of normal signal characteristics.BONES: A 4-mm bone fragment is displaced approximately 3 mm from the lateral articular surface of the radius.ADDITIONAL
1. 4-mm bone fragment from the lateral articular surface of the radius.2. Intact TFCC and carpal ligaments, as above. 