Virtually any pathological condition affecting the plantar surface of the feet can be controlled by appropriate insoles/orthoses provided that sufficient depth is made available in the footwear.

There are basically two types:

1. A simple or non-casted insole which has as its principle the use of the prescribed padding.
2. Casted insoles made to a cast or model of the foot. Insoles made to a cast may be accommodative Orthoses which are designed to support and protect feet which have deformities incapable of correction, or functional Orthoses, which are designed to correct biomechanical imbalances between the hindfoot and the forefoot.