[Venous flow reversal and the pedicled radial island flap (anatomic study)].

In the distally pedicled radial island flap a reverse venous flow was observed. In 20 cadaver extremities the veins of the forearms were perfused, dissected and also island flaps elevated. The three venous systems are described as to number, localization and shape of the flaps with an explanation of the venous flow.