Ankle-foot orthosis function in low-level myelomeningocele.
case_series · Level IV
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- Record sourced from PubMed, PMID 1613099.
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Abstract
Six children with low-level myelomeningocele underwent gait analysis. All showed excessive ankle dorsiflexion and knee flexion when walking barefoot. A rigid thermoplastic ankle-foot orthosis (AFO) improved gait by preventing ankle dorsiflexion and reducing knee flexion. Biomechanically, the AFO caused a reduction in external knee moment by aligning the knee with the ground reaction force. Small changes in the foot-shank angle of the orthosis had profound effects on knee mechanics. Knee hyperextension could be controlled by a rocker sole. Kinetic gait analysis permits understanding of the biomechanical effects of orthoses.
Medical subject headings
- Braces
- Gait
- Spinal Dysraphism
Anatomy
- ankle
- foot
- knee