关键词: 皮瓣, 　桡动脉掌浅支, 　腕横纹皮瓣, 　应用解剖, 　修复

Abstract:

Objective　To explore the anatomical basis of blood supply and surgical design method of the wrist crease flap through the anatomical observation of the superficial palmar branch of the radial artery and the cutaneous branches of wrist crease，which could provide anatomical basis for the clinical application of the flap.　Methods　We dissected 6 fresh hand specimens perfused with red latex to observe the course of superficial palmar branch of the radial artery and the regularity and characteristic of the cutaneous branches of wrist crease’s distribution.　Results　Superficial palmar branch of the radial artery started at palm-ulnar side of styloid process of radius from radial artery with an initial diameter of（1.26±0.36）mm，and traveled to the thenar. The cutaneous branches of superficial palmar branch of the radial artery supplied the skin of wrist crease were given off at middle wrist crease with an initial diameter of（0.23±0.06）mm near the proximal aspect of the tubercle scaphoid bone.   Conclusion　Wrist crease flap was supplied by cutaneous branches of wrist crease from superficial palmar branch of the radial artery. The flap could be designed as a free skin flap or pedicled skin flap to repair the soft tissue defect of hand. The flap had such advantages as reliable blood supply no main vascular sacrifice, and safe surgery.

Key words: Superficial palmar branch of the radial artery, 　Wrist crease flap, 　Applied anatomy, Repair