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Anterior release of elbow flexion contractures in children with obstetrical brachial plexus lesions
Antonio García-López1, Pablo Sebastian, Francisco Martinez-López
1Upper Limb Unit, Orthopaedic Department, Hospital General Universitario de Alicante, Alicante, Spain. garcialopez1@hotmail.com
Insights
Anterior elbow release effectively treats severe elbow flexion contractures in obstetric brachial plexus palsy, improving extension without compromising flexion strength. This surgical method offers significant functional gains for affected patients.
Area of Science:
- Orthopedic Surgery
- Pediatric Orthopedics
- Brachial Plexus Injury
Background:
- Elbow flexion contractures are common in upper obstetric brachial plexus palsy (OBP).
- Contractures exceeding 30° often show limited improvement with conservative treatments like serial splinting.
- Significant contractures can lead to functional and aesthetic limitations.
Purpose of the Study:
- To evaluate the efficacy of anterior elbow release with partial tenotomy of the brachialis and biceps muscles.
- To assess the impact of this surgical technique on elbow flexion contractures in OBP patients.
Main Methods:
- Ten patients with OBP (C5-C6) and elbow flexion contractures (35°-60°) underwent anterior elbow release.
- Distal tendons of the biceps and brachialis muscles were lengthened.
- Patients had pre-operative elbow flexion strength of 4+ (MRC scale) and no bone abnormalities.
Main Results:
- A mean gain in elbow extension of 28° was achieved after a 3-year follow-up.
- Elbow flexion strength was maintained in all patients.
- Patients reported high satisfaction, with hypertrophic scarring as the main complication.
Conclusions:
- Anterior elbow release is a valuable surgical option for elbow flexion contractures greater than 35° in OBP.
- The procedure effectively reduces deformity, restoring functional elbow range of motion.
- This technique does not compromise elbow flexion strength.
Purpose:
A flexion contracture of the elbow is common in upper obstetric brachial plexus palsy. One less than 30° involves no major aesthetic or functional abnormalities, whereas for one greater than 30°, conservative treatment with serial splints produces variable results. We evaluated anterior release of the elbow with partial tenotomy of the anterior brachialis muscle and of the biceps, for their effect on elbow flexion contractures.
Methods:
We performed 10 anterior releases of the elbow with lengthening of the distal tendons of the biceps and the anterior brachialis muscle. All patients had upper obstetric brachial plexus palsies (C5-C6) and elbow flexion contractures of 35° or greater (range, 35° to 60°). The flexion strength of the elbow was 4 or higher on the British Medical Research Council scale, and the patients had no bone abnormalities in the elbow region.
Results:
After a mean follow-up period of 3 years, the mean gain in extension was 28° (range, 20° to 35°). All patients maintained flexion strength. Elbow extension was 2° less than obtained at surgery and was maintained during follow-up. All patients were satisfied or very satisfied, and none presented major complications, except hypertrophic scarring to a greater or lesser extent at the incision site.
Conclusions:
Anterior release of the elbow is a useful method for treating elbow flexion contractures of more than 35° and can reduce the deformity to bring it within functional range without compromising flexion.
Type Of Study/Level Of Evidence:
Therapeutic IV.
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