Ankle-Foot Orthosis Function in Low-Level Myelomeningocele
- 1 July 1992
- journal article
- research article
- Published by Wolters Kluwer Health in Journal of Pediatric Orthopaedics
- Vol. 12 (4) , 578-21
- https://doi.org/10.1097/01241398-199207000-00020
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.Keywords
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