Free musculocutaneous flap transfer of extensor digitorum brevis muscle by microvascular anastomosis for restoration of function of thenar and adductor pollicis muscles.

This article reports 3 cases of surgical restoration of function of the thenar muscle and the adductor pollicis muscle of the thumb with free musculocutaneous flaps of the extensor digitorum brevis muscle of the toe by microsurgical technique. Two years' follow-up revealed good functional recovery of the hand with normal electromyographic findings and grade 3-4 muscular power.