For many years arthrodesis, or surgical fixation of a joint, has been the method most commonly used to overcome deformity and to restore stability in a foot the function of which has been disturbed by paralysis, fracture or disease. In fact, this method is the only reliable means of securing and maintaining correction of a deformity. Arthrodesis necessitates the sacrifice of a joint, but such a loss is of little consequence as compared to the benefit derived from the stabilizing process. Motion that cannot be controlled is useless. There are several joints in the foot that may be destroyed without materially impairing the flexibility. The joints on which arthrodesis is most often performed are the ankle, the subastragalar and the midtarsal. This paper is concerned with fixation of the subastragalar joints.
The object of a subastragalar arthrodesis is to improve the function of an unstable foot, first, by stabilizing the