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Index finger extension and strength after extensor indicis proprius transfer
R J Noorda1, J J Hage, P J de Groot
1Department of Plastic and Reconstructive Surgery, Academic Hospital, Free University, Amsterdam, The Netherlands.
The Journal of Hand Surgery
|September 1, 1994
Summary
Extensor indicis proprius tendon transfer can cause index finger extension lag and reduced strength. However, most patients experience no daily life limitations, and surgeons can minimize risks by careful tendon sectioning.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Musculoskeletal Research
Background:
- Extensor indicis proprius (EIP) tendon transfer is a common surgical procedure for hand reconstruction.
- Long-term outcomes and potential donor site morbidity require thorough investigation.
Purpose of the Study:
- To evaluate the long-term functional outcomes and morbidity of the donor index finger after EIP tendon transfer.
- To identify factors contributing to donor site morbidity and propose preventative surgical techniques.
Main Methods:
- A retrospective review of 34 patients who underwent EIP tendon transfer.
- Average follow-up period of 8 years.
- Assessment of donor index finger extension lag, extension strength (dependent and independent), and patient-reported functional limitations.
Main Results:
- 24 out of 34 patients (70.6%) exhibited an extension lag in the donor index finger.
- All patients demonstrated reduced extension strength in the donor index finger.
- Despite functional deficits, 30 patients (88.2%) reported no limitations in daily life activities.
Conclusions:
- While EIP tendon transfer can lead to donor index finger extension lag and weakness, functional impact on daily activities is often minimal.
- Surgical technique is crucial; avoiding trauma to the dorsal aponeurosis by sectioning the index tendon proximal to the hood may prevent extension lag.