Vascular Anatomy of the Hand in Relation to Flaps.

The vascular supply of the hand and wrist is derived from the radial and ulnar arteries. This forms a complex network of vessels on the palmar and dorsal surfaces of the hand. Anastomoses and branching patterns of vessels at the level of the carpals, metacarpals, and phalanges form the basis of old and new flap designs. This article provides an overview on the vascular anatomy of the hand and forearm with emphasis on the blood supply to various flaps.