Triangular fibrocartilage injuries

The triangular fibrocartilage complex (TFCC) provides an articular surface between the ulna and the ulnar carpal bones and provides stability to the distal radioulnar joint while allowing pronation and supination. This structure may be torn in a hyperextension/pronation mechanism, or associated with a distal radius fracture. Palmer (Palmer) has classified traumatic TFCC injuries as follows:

Additionally, acute injuries of the triangular fibrocartilage complex may be described as nondestabilizing, destabilizing, or associated with fractures of the distal radius and/or ulnar styloid. Nondestabilizing injuries, such as a central perforation, are usually treated with several months of immobilization before considering arthroscopic debridement. Destabilizing injuries, such as disruption of the radial attachment with instability of the distal radioulnar joint may be technically difficult to repair, requiring a combination of arthroscopic and open techniques. Injuries associated with distal radius fractures are underdiagnosed, and account for residual ulnar pain and distal radioulnar instability following fracture. Hopefully, more aggressive arthroscopic management of these lesions will reduce the incidence of long-term symptoms.

Triangular Fibrocartilage Injuries
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