Abstract
The radial forearm flap largely consists of 2 venous drainage systems- superficial and deep venous drainage. With the development of microvascular anastomosis, flap survival has risen and complications decreased. A large diameter vessel with sufficient anastomosis and venous drainage undoubtedly provides a decrease in the incidence of congestive flap necrosis. Therefore some surgeons put an emphasis on the perforating cubitalis vein (profundus cubitalis) which connects the deep and superficial systems. It's relatively large diameter and dual system allows the surgeon of any level to make a reliable anatomosis.
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