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Extensor indicis proprius to extensor pollicis longus transfer: results and complications
L De Smet1, J Van Loon, G Fabry
1Department of Orthopedic Surgery, U.Z. Pellenberg, Belgium.
Acta Orthopaedica Belgica
|January 7, 1998
Summary
Extensor indicis proprius transfer effectively restores hand function after extensor pollicis longus rupture, yielding excellent results in most patients. While some mobility restriction occurred, key functional outcomes were largely preserved.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Reconstructive Surgery
Background:
- Extensor pollicis longus (EPL) rupture significantly impairs thumb function.
- Tendon transfers are a surgical option for restoring EPL function.
Purpose of the Study:
- To evaluate the functional outcomes of extensor indicis proprius (EIP) transfer for EPL rupture.
- To assess hand, thumb, and index finger function post-EIP transfer.
Main Methods:
- Retrospective analysis of 13 patients undergoing EIP transfer for EPL rupture.
- Assessment of range of motion, extension lag, grip strength, and dexterity.
Main Results:
- 12 out of 13 patients achieved excellent or good functional results.
- Mean extension lag was observed in the metacarpophalangeal (MP) and interphalangeal (IP) joints of the thumb (17°, 8.5°) and the MP joint of the index (25°).
- Index finger extension strength decreased to 65%, while grip and dexterity reached 90% and 115% of the contralateral side, respectively.
Conclusions:
- EIP transfer is a viable and effective procedure for managing EPL ruptures.
- The procedure generally yields good to excellent functional recovery, despite potential minor mobility restrictions.