Haerle Max, Häfner Hans-Martin, Dietz Klaus, Schaller Hans-Eberhard, Brunelli Francesco
Department of Hand and Plastic Surgery, Burn Centre, University of Tübingen, Germany.
Plast Reconstr Surg. 2003 May;111(6):1891-8. doi: 10.1097/01.PRS.0000057529.76413.D7.
The dominance of the radial or ulnar artery at the forearm level and their contributions to the circulation of the hand remain a matter of contention. Therefore, the authors proposed to investigate the predominance of one of these arteries first by anatomic studies on 40 fresh cadaver upper extremities, and then by dynamic studies. The dynamic studies included color Doppler sonography in 22 individuals (44 hands) and five-channel plethysmography in 40 individuals (40 right hands). It was found that the ulnar artery is dominant at the elbow, but after originating its collateral branches, the radial artery becomes the dominant artery in the distal forearm and, consequently, constitutes the major source of vascularization to the hand. The ulnar artery is rarely dominant at the forearm level and is physiologically less important. Therefore, there is no hemodynamic reason to prefer the radial artery to the ulnar artery for any invasive maneuvers.
在前臂水平，桡动脉或尺动脉何者占优势及其对手部血液循环的贡献仍存在争议。因此，作者建议首先通过对40具新鲜尸体上肢进行解剖学研究，然后进行动态研究，来探究这两条动脉中哪一条占优势。动态研究包括对22名个体（44只手）进行彩色多普勒超声检查，以及对40名个体（40只右手）进行五通道体积描记法检查。结果发现，尺动脉在肘部占优势，但在发出其侧支后，桡动脉在前臂远端成为优势动脉，因此构成了手部血管化的主要来源。尺动脉在前臂水平很少占优势，生理重要性较低。因此，在任何侵入性操作中，没有血流动力学方面的理由更倾向于选择桡动脉而非尺动脉。
