The subtle cavus foot and association with ankle instability and lateral foot overload.

The subtle cavus foot alignment is associated with many injuries occurring in the athletic population, most commonly ankle instability and lateral foot overload. Although correction of the primary injury may address the manifestations of the subtle cavus foot, it does not change the alignment. Without recognition of this alignment, the injury likely will recur. The goal is to recognize the posture of the subtle cavus, treat the cavus and the injury, and prevent future recurrence.