Posterior leaf spring AFO
orthosis
The plsAFO was made from a single piece of thermoformable polypropylene that encompassed the dorsal part of the leg and the sole of the foot (Fig. The same trim line was used for all plsAFOs. The proximal edge was 4 cm below the popliteal fossa. The anterior edge (medial and lateral) followed a line that passed from proximal to distal, just in front of the centre of the calf in the sagittal plane to the posterior border of the malleolus. The orthosis supported the medial arch of the foot to the head of the first metatarsal before flattening.This orthosis prevented plantarflexion during swing phase and allowed passive ankle dorsiflexion during stance phase. It is commonly used in France [