Obstetrical brachial plexus palsy.

Area of Science:

• Pediatric Surgery
• Neurology
• Orthopedics

Background:

• Brachial plexus injuries in newborns are common and can lead to significant functional deficits.
• Current management strategies, including nonoperative and operative approaches, vary widely.
• Objective criteria for surgical intervention are crucial for optimizing patient outcomes.

Purpose of the Study:

• To review the authors' approach to the evaluation, operative management, and reconstructive techniques for neonatal brachial plexus injuries.
• To outline the indications and timing for surgical intervention.
• To discuss the role of nerve grafting and nerve transfers in improving functional recovery.

Main Methods:

• Systematic review of the authors' clinical experience and established criteria for patient selection.
• Utilizing motor examination and specific tests (e.g., Toronto Test Score, cookie test) to guide management decisions.
• Description of surgical techniques including neuroma excision, sural nerve grafting, and selective motor nerve transfers.

Main Results:

• Nonoperative management is the usual initial approach for neonatal brachial plexus injuries.
• Surgical intervention is guided by clinical motor examination and patient selection criteria, with timing varying from 3 to 9 months.
• Selective motor nerve transfers, alone or with grafting, allow coaptation closer to the neuromuscular junction, potentially enhancing regeneration.
• Children undergoing primary surgery show low perioperative morbidity and achieve motor function gains up to 3-4 years postoperatively.

Conclusions:

• A structured approach to evaluation and operative management, including selective nerve transfers, can yield positive functional outcomes in neonatal brachial plexus injuries.
• Careful patient selection and appropriate timing of surgery are critical for success.
• Nerve regeneration and functional recovery continue for several years after surgical intervention, stabilizing around 3-4 years.