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Updated: Jun 4, 2026
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Development of a Neonatal Rat Model for Brachial Plexus Birth Injury
Published on: March 27, 2026
Causes of neonatal brachial plexus palsy
1Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, NYU Langone Medical Center, New York, NY, USA.
Bulletin of the NYU Hospital for Joint Diseases
|February 22, 2011
Summary
Neonatal brachial plexus palsy has various causes, with obstetrical factors being most common. Researchers suggest replacing "obstetrical brachial plexus palsy" with "birth-related brachial plexus palsy" for better classification.
Area of Science:
- Neonatal neurology
- Pediatric orthopedics
- Obstetrics
Background:
- Brachial plexus palsy in newborns presents diverse etiologies.
- Obstetrical brachial plexus palsy is the most frequently cited cause.
- Accurate classification is crucial for understanding and managing neonatal brachial plexus palsy.
Purpose of the Study:
- To review and classify the causes of neonatal brachial plexus palsy.
- To propose a more inclusive terminology for birth-related brachial plexus injuries.
Main Methods:
- Literature review of identified causes of neonatal brachial plexus palsy.
- Analysis of biomechanical factors contributing to obstetrical brachial plexus palsy.
- Evaluation of existing terminology and proposed alternatives.
Main Results:
- Identified causes include obstetrical trauma, genetic factors, infections, structural abnormalities, and intrauterine issues.
- Kaiser Wilhelm syndrome is unlikely to be a cause of neonatal brachial plexus palsy.
- Obstetrical brachial plexus palsy results from stretching forces during labor, influenced by force magnitude, acceleration, and angle.
Conclusions:
- A comprehensive classification system for neonatal brachial plexus palsy is needed.
- The term "birth-related brachial plexus palsy" is recommended to encompass various labor-related injuries, replacing "obstetrical brachial plexus palsy".
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