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Dorsal dislocation of the lunate with multiple extensor tendon ruptures
M G Schwartz1, S M Green, F A Coville
1Hand Surgery Service, Elmhurst General Hospital, N.Y.
The Journal of Hand Surgery
|January 1, 1990
Summary
This case study details treating an old dorsal lunate dislocation with multiple extensor tendon ruptures. Surgical intervention involved proximal row carpectomy and tendon transfer for improved finger function.
Area of Science:
- Orthopedic surgery
- Hand surgery
- Traumatology
Background:
- Dorsal lunate dislocations are rare wrist injuries.
- Associated extensor tendon ruptures present significant functional challenges.
- Chronic dislocations complicate treatment and prognosis.
Observation:
- A case of an old dorsal lunate dislocation with concurrent rupture of multiple extensor tendons is presented.
- The injury pattern significantly impaired wrist and finger extensor function.
Findings:
- Treatment involved a proximal row carpectomy to address the carpal instability.
- The extensor indicis proprius tendon was transferred to reconstruct the ruptured extensor tendons of the long, ring, and small fingers.
Implications:
- This surgical approach offers a potential solution for complex dorsal lunate dislocations with tendon loss.
- Successful tendon transfer can restore essential extensor function to multiple fingers.
- Highlights the importance of addressing both bony and soft tissue injuries in chronic wrist trauma.