The authors have studied the long term results of 45 Pantalar arthrodesis realised either in one stage, or in two stages. Technical details are given for obtaining a good positioning during the surgical procedure. It was found that post operative complications were more frequent than after more limited operations. The long term results were satisfactory, provided a good positioning. Residual equinus deformities were better tolerated than deformities in pronation or supination. It was noted no consequences on neighboring joints.