Thermal Injury of the Motor Branch of Ulnar Nerve Following Electrocauterization of Ulnar Artery-A Rare Complication After Open Carpal Tunnel Release.

We present a rare complication of open carpal tunnel release involving severe thermal injury to the motor branch of the ulnar nerve after a misplaced incision and blind electrocauterization of the lacerated ulnar artery. Accurate and precise anatomical knowledge is very important to safely perform this procedure.