Outcomes of Single Anastomoses for Superficial and Deep-System Venous Drainage of Radial Forearm Free Flaps

Objective Venous insufficiency occurs in radial forearm free flaps (RFFFs) when either the deep venous system (DVS) or superficial venous system (SVS) is used as the venous outlet. We report our experience using the antecubital perforating vein (APV) in a single-vessel anastomosis to the median-cubital or cephalic vein to drain both systems. Study Design Retrospective review. Setting Single, academic, tertiary care center. Methods Data were collected from 72 patients who underwent RFFF from October 2009 to January 2017. In all cases, DVS and SVS were dissected, and an APV single-vessel anastomosis was attempted. Results Anatomical variations precluded single-vessel anastomosis in 11 (15.3%) cases. In 61 (84.7%) cases, single-vessel anastomosis produced unobstructed drainage for DVS and SVS without intrinsic venous insufficiency. Venous thrombosis and total loss occurred in 2 (3.3%) and 1 (1.6%) patients, respectively. Proximal dissection of the cephalic vein addressed a vessel-depleted neck in 3 cases. Conclusion The antecubital perforating vein is present and functional in most patients, allowing for single anastomosis techniques for RFFF. Antecubital perforators capture DVS and SVS outflow through a single, extended venous pedicle, eliminating the risk of venous insufficiency and need for vein grafts.

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