Correlation of Compensatory Alignment of the Subtalar Joint to the Progression of Primary Osteoarthritis of the Ankle

Abstract

The varus inclination of the articular surface of the tibial plafond progressed by stages; however, anterior opening was not significant at all stages. The valgus inclination of the subtalar joint progressed until the intermediate stage and converted to varus position at the later stage. CONCLUSION The compensatory function of the subtalar joint was most pronounced at the intermediate ankle arthritis stage.