Ground Reaction Ankle Foot Orthosis (GRAFO)
Sometimes called a Floor Reaction AFO, the GRAFO is used to control instabilities in the lower limb by maintaining proper alignment of limbs and controlling their motion. It is often used to try and maintain the length of the hamstring and prevent crouch gait which is one of the most prevalent of movement disorders among children with cerebral palsy.
Crouch gait is characterised by excessive knee flexion during stance, this substantially increases the energy requirements of walking and, if not corrected, can lead to chronic knee pain and joint degeneration.
The Grafo is complex to manufacture and in larger patients will require carbon fibre reinforcement.