Association of ankle instability and foot deformity

Abstract
95 patients operated on for chronic lateral ankle instability were compared for possible foot deformities with 34 normal persons. All the feet underwent a standardized radiographic examination. Measurements of three defined angles on a lateral nonweight-bearing radiograph indicated higher foot arches in the instability group than in the control group. Benink''s tarsal index showed a higher frequency of cavovarus deformities in the instability group.

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