The dorsal radiocarpal ligament is the primary dorsal wrist stabiliser, running obliquely from the dorsal radius to the triquetrum. It is the key structure preventing palmar carpal displacement. Its disruption in palmar perilunate dislocations allows the lunate to escape anteriorly into the carpal tunnel (lunate dislocation). The dorsal radiocarpal ligament is preserved and repaired during Berger dorsal capsulotomy closure.
| Origin | Dorsal lip of the distal radius (Lister's tubercle region) |
|---|---|
| Insertion | Dorsal triquetrum and lunate |
| Actions | Primary restraint against palmar carpal translation; resists wrist flexion and ulnar carpal shift |
|---|
Careful preservation and anatomical repair of the dorsal radiocarpal ligament during wrist arthrotomy is essential for maintaining dorsal wrist stability. Its disruption contributes to the dorsal subluxation of the ulnar carpus in chronic SLIL instability.
Dorsal radiocarpal ligament attenuation allowing palmar carpal translation managed with dorsal capsulodesis.
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