[Anatomic basis and clinical application of retrograde axial skin flap]

This study is an analysis of anatomic basis and clinical application of retrograde axial skin flap. The arterial supply of retrograde axial skin flap was classified into three types: (1) Arcuate artery; (2) Circular artery; (3) Arterial anastomosis branch. The venous return of retrograde axial skin flap was also divided into three types: (1) No venous valve; (2) Weak venous valve; (3) Venous anastomosis branch. 35 cases of soft tissue defect were repaired by retrograde axial skin flaps. The sizes of the flaps ranged from 4 x 2 cm to 18 x 7 cm. All flaps survived with satisfactory results. Advantages and disadvantages, the donor area, the selection of vascular pedicle, and the precautions in the preparation of this flap were discussed.