| Introduction |
- ECU subluxation secondary to attenuation and rupture of the ECU subsheath in the 6th dorsal compartment
- sixth compartment is unique in that subsheath is critical to ECU stability
- ECU subluxes in volar and ulnar direction
- subluxation (snapping) can lead to ECU tendonitis
|
| Presentation |
- Physical exam
- pain and snapping over 6th dorsal space
- extension and ulnar deviation of the wrist elicit a painful snap
- supination and pronation elicit a painful snap
|
| Treatment |
- Nonoperative
- wrist splint or long arm cast
- indications
- technique
- that restricts forearm pronation and supination
- Operative
- ECU subsheath reconstruction
- indications
- if nonoperative management fails
- technique
- using a extensor retinaculum flap
|