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Kinematic assessment of the upper extremity in brachial plexus birth palsy
Teresa Mosqueda1, Michelle A James, Kyria Petuskey
1University of California, Davis School of Medicine, Davis, California 95817, USA.
Insights
Upper extremity motion analysis (UEMA) effectively differentiates shoulder movement in children with brachial plexus birth palsy (BPBP) during daily activities. This method can also track treatment progress for improved patient outcomes.
Area of Science:
- Pediatric Orthopedics
- Biomechanics
- Rehabilitation Medicine
Background:
- Children with brachial plexus birth palsy (BPBP) often exhibit shoulder weakness, impacting daily activities.
- Traditional range of motion tests may not fully capture functional limitations caused by BPBP.
Purpose of the Study:
- To evaluate if upper extremity motion analysis (UEMA) can detect differences in shoulder motion during activities of daily living (ADLs) between children with BPBP and healthy controls.
- To establish UEMA as a tool for assessing functional deficits in pediatric BPBP patients.
Main Methods:
- A cohort of 55 children with BPBP and 51 healthy children underwent UEMA following a standardized protocol.
- Kinematic data for selected ADLs were collected pre-operatively to analyze shoulder joint motion across all planes.
Main Results:
- UEMA identified statistically significant differences in shoulder motion during all tested ADLs between the BPBP group and the control group.
- The analysis demonstrated UEMA's capability to discriminate between affected and unaffected individuals.
Conclusions:
- UEMA is a valid method for distinguishing shoulder function during ADLs in children with BPBP compared to normal peers.
- UEMA shows promise as an objective tool for measuring the efficacy of surgical interventions in pediatric BPBP.
Abstract:
Children with brachial plexus birth palsy (BPBP) may have shoulder external rotation and abduction weakness that can restrict activities of daily living (ADLs). Static range of motion measurements may not measure ADL restrictions. Motion analysis has been used to quantify gait limitations and measure changes associated with treatment. The purpose of this study was to determine whether upper extremity motion analysis (UEMA) can measure the differences in shoulder motion during ADLs between children with BPBP and normal children. Following a previously described UEMA protocol, 55 children with BPBP and 51 normal children (control group) were studied. Kinematic data of selected ADLs were collected before surgery. UEMA was used to measure statistically significant differences between children with BPBP and control subjects for all planes of shoulder motion in all activities tested. The authors conclude that UEMA can discriminate between children with BPBP and control subjects during selected ADLs, and suggest that UEMA can also be used to measure the effects of surgical interventions in children with BPBP.
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