33-year-old male with perilunate disassociation. Foci of air may represent post-traumatic vacuum phenomena and mildly limits examination. There has been reduction of the previously described peri-lunate dislocation.LIGAMENTS: Signal abnormality within the ulnar collateral ligament with findings compatible with tear. Further, increased scapholunate interval indicates a tear of the scapholunate ligament.TRIANGULAR FIBROCARTILAGE COMPLEX: There is complete disruption of the TFCC with increased fluid visualized within the DRUJ, indicating tear. TENDONS: The flexor tendons appear intact, without significant abnormality of the carpal tunnel. Guyon's canal appears within normal limits. The extensor tendons also appear intact, but there is increased signal within adjacent soft tissues and within some compartments (specifically the third and fourth), likely indicative of reactive edema from recent injury and reduction.BONES: Fractures of the carpus are better described on same-day CT. However, there is no significant bony edema of the carpus. There is signal abnormality of the ulnar styloid, likely secondary to fracture. ADDITIONAL
1. Findings compatible with TFCC tear as outlined above.2. Increased radiolunate interval, indicative of tear of the the radiolunate ligament.3. Ulnar collateral ligament tear.4. Ulnar styloid fracture. For further fracture findings, please same day CT.5. Diffuse soft tissue infiltration along the dorsum of the wrist, likely reactive edema from recent procedure.