[The reverse forearm flap pedicled with the ulnar branch of the ulnar artery].

Objective: To introduce a new flap for the repair of soft tissue defects in the hand.

Methods: The distally pedicled ulnar flap is based on the ascending branch of the upper-wrist cutaneous branch of the ulnar artery. The retrograde flow is ensured by the dorsal carpal arch via the descending branch.