A pinch callus is an area of thickened skin found on the outside of the big toe. A pinch callus occurs when the big toe joint does not function properly resulting in the foot twisting outward when walking. This movement causes excessive friction on the side to the big toe resulting in a ridge of thickened skin.
Friction on the outside of the toe can be reduced with the use of a Gel digital pad or Gel digital cap. To compensate for lack of function of the great toe joint a shoe with a rocker sole or balance bar will improve forward propulsion.