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Effects of Foot Orthoses on Patients with Chronic Ankle Instability

^* Alamitos Seal Beach Podiatry Group, 550 Pacific Coast Hwy, Ste 209, Seal Beach, CA 90740.

Abstract

Chronic instability of the ankle can be the result of mechanical and functional deficits. An acute ankle sprain can cause mechanical and functional instability, which may or may not respond to standard rehabilitation programs. Chronic instability results when there is persistent joint laxity of the ankle or when one or more components of neuromuscular control of the ankle are compromised. A loss of balance or postural control seems to be the most consistent finding among athletes with chronic instability of the ankle. Recent research in patients with acute and chronic ankle instability has revealed positive effects of foot orthoses on postural control. This article reviews the current research relevant to the use of foot orthoses in patients with chronic ankle instability and clarifies the suggested benefits and the shortcomings of these investigations. (J Am Podiatr Med Assoc 97(1): 19–30, 2007)