A functional anomalous deep flexor tendon to the long and ring fingers: A case report

Abstract

A 33-year-old woman was evaluated for a laceration sustained to the anterior surface of her right distal forearm. Physical examination was consistant with complete laceration of the flexor digitorum superficialis to all four fingers, flexor digitorum profundus (FDP) to the little finger, flexor carpi ulnaris, palmaris longus, and the ulnar neurovascular bundle. The deep flexor tendons to the index, long, and ring fingers, the flexor pollicis longus, and the median nerve and radial neurovascular structures appeared to be spared. Surgical exploration confirmed transection of all four flexor digitorum superficialis tendons, flexor carpi ulnaris, palmoris longus, and the ulnar neurovascular bundle. The median nerve, radial nerve, and radial artery were found to be intact. Exploration of the deep flexor tendons revealed lacerations not