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Elbow flexion after primary reconstruction in obstetric brachial plexus palsy
1Department of Surgery, Division of Plastic and Reconstructive Surgery, Microsurgery Program, Eastern Virginia Medical School, Norfolk, Virginia 23501, USA. mrc@jkterzis.com
Insights
Early surgical reconstruction for obstetric brachial plexus palsy yields optimal elbow flexion outcomes. Timely intervention, particularly before 3 months, significantly improves results and minimizes contractures.
Area of Science:
- Pediatric Orthopedics
- Neurology
- Surgical Reconstruction
Background:
- Obstetric brachial plexus palsy (OBPP) affects nerve function in infants, impacting arm movement.
- Restoring elbow flexion is crucial for functional recovery in children with OBPP.
- Surgical reconstruction aims to improve muscle grading and active range of motion.
Purpose of the Study:
- To analyze outcomes of primary reconstruction for elbow flexion in OBPP.
- To identify factors influencing surgical success, including lesion type and timing.
- To compare different reconstruction techniques for optimal results.
Main Methods:
- Retrospective study of 52 children (54 upper extremities) with OBPP undergoing primary reconstruction.
- Outcomes assessed based on muscle grading, active elbow flexion, and contracture.
- Analysis correlated results with brachial plexus lesion type, surgery timing, and reconstruction method.
Main Results:
- 78% of extremities achieved good to excellent results (>=M3+).
- Average postoperative biceps muscle grading was 3.7; active elbow flexion averaged 108 degrees.
- Early reconstruction (<3 months) with lateral cord repair showed superior outcomes and minimal contractures.
- Late reconstruction (>=7 months) of the musculocutaneous nerve yielded poorer results.
Conclusions:
- Timing of surgery and type of brachial plexus injury significantly impact OBPP reconstruction outcomes.
- Early intervention (<3 months) with intraplexus donor reconstruction is recommended for optimal elbow flexion.
- Delayed reconstruction or specific nerve repairs may lead to less favorable functional recovery.
Abstract:
Fifty-two children (54 upper extremities) with obstetric brachial plexus palsy who underwent primary reconstruction for elbow flexion restoration were studied. The outcomes were analysed in relation to the type of brachial plexus lesion, timing of surgery, and the type of reconstruction. Overall, 42 of 54 extremities (78%) achieved good and excellent results (> or =M3+). The average postoperative muscle grading for the biceps was 3.7 (SD 0.8), and the average postoperative active elbow flexion was 108 degrees (SD 33 degrees ). The average elbow flexion contracture was 18 degrees (SD 21 degrees ). The timing of surgery and the type of the brachial plexus injury significantly influenced the final outcome. The best results were seen in early cases (< or =3 months), where the lateral cord was reconstructed from intraplexus donors. In this group, minimal flexion contracture deformity was observed. Late reconstruction (> or =7 months) of the musculocutaneous nerve resulted in inferior results.
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