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Glenoid version in children with obstetric brachial plexus palsy
A D Beischer1, T D Simmons, I P Torode
1Royal Children's Hospital, Melbourne, Australia.
Journal of Pediatric Orthopedics
|May 27, 1999
Summary
Children with obstetric brachial plexus paralysis often have abnormal glenoid version, a shoulder socket measurement. This study found significantly different glenoid version and structure in affected shoulders compared to normal ones.
Area of Science:
- Orthopedics
- Pediatric Surgery
- Neurology
Background:
- Obstetric brachial plexus paralysis (OBPP) can lead to shoulder deformities.
- Posterior shoulder dislocation is a known complication in children with OBPP.
Purpose of the Study:
- To investigate glenoid version and structure in children with OBPP and posterior shoulder dislocation.
- To compare affected and unaffected shoulders in these patients.
Main Methods:
- Computed axial tomography (CT) scans were used to assess glenoid version and structure.
- A cohort of 29 children with OBPP and posterior shoulder dislocation was studied.
- Scans were primarily performed before surgical intervention.
Main Results:
- A significant difference in glenoid version was observed between normal and affected sides (mean -29.5° vs. -6.9°).
- Glenoid structure differed, with laterally convex articular surfaces and hypoplastic posterior rims noted in dislocated shoulders.
Conclusions:
- Children with OBPP and posterior shoulder dislocation exhibit distinct glenoid version and structural abnormalities.
- These findings highlight the impact of OBPP on shoulder development and joint stability.