MPJ— The length of a foot orthotic’s shell, mid-layer or top cover, which ends near the metatarsal heads Sulcus— The length of a foot orthotic’s shell, mid-layer or top cover, which ends just before the toes Full— The length of a foot orthotic’s shell, mid-layer or top cover, which extends…

Foot orthotics typically fall into three categories: Functional – Functional foot orthotics are rigid devices that are designed to correct abnormal foot biomechanics and the resulting lower extremity malfunctions. Functional orthotics are mainly designed to control motion in two major foot joints located directly below the ankle joint. Functional orthotics…