Retrograde Flow Digital Artery Flaps.

Retrograde flow digital artery flaps are a versatile single-stage option for the coverage of fingertip and dorsal digit defects. There are technical challenges associated with pedicle dissection and preparation. Techniques vary predominantly in the vessel utilized (either the proper digital artery or its branches) and the incorporation of the digital nerve or its branches in the pedicle with subsequent neurorrhaphy. Venous failure is more common. There is often mild but perceivable donor site morbidity. Evidence favors an innervated flap for better sensory recovery. Cold intolerance follows sacrifice of a digital artery.