| ankle-foot orthosis | A brace (usually plastic) worn on the lower leg and foot to support the ankle, hold the foot and ankle in the correct position, and correct foot drop. (12 Dec 1998) |
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| orthosis | An external orthopaedic appliance, as a brace or splint, that prevents or assists movement of the spine or the limbs. Origin: G. Orthosis, a making straight (05 Mar 2000) |