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Persistent brachial plexus birth palsies
A H Jahnke1, D F Bovill, H R McCarroll
1Department of Surgery, Letterman Army Medical Center, San Francisco, California 94129-6700.
Journal of Pediatric Orthopedics
|July 11, 1991
Summary
Birth trauma often causes brachial plexus injuries in infants. Most cases improve over time, but complete recovery is rare, highlighting the need for ongoing management.
Area of Science:
- Pediatric Orthopedics
- Neurology
- Traumatology
Background:
- Brachial plexus palsy is a significant birth injury affecting newborns.
- Understanding the natural history and recovery patterns is crucial for patient management.
Purpose of the Study:
- To review the long-term outcomes of brachial plexus palsies resulting from birth trauma.
- To analyze the distribution and resolution patterns of these injuries over time.
Main Methods:
- Retrospective review of 66 brachial plexus palsies in 64 patients.
- Data collected over a 15-year period (1973-1988) at a specialized hospital unit.
- Analysis of palsy types (upper, lower, mixed) at presentation and follow-up.
Main Results:
- Initial presentation: 34 upper, 3 lower, 29 mixed palsies.
- Final follow-up distribution: 42 upper, 6 lower, 14 mixed palsies.
- Average time to resolution or plateau was 4.5 months; complete resolution occurred in only one patient.
Conclusions:
- Birth-related brachial plexus palsies often show a shift in distribution towards upper limb involvement over time.
- Complete spontaneous resolution is uncommon, emphasizing the chronic nature of many cases.
- Obstetrical risk factors previously associated with these injuries were confirmed.