作者在18只尸体手标本上,对拇指背动脉进行了显微解剖研究,发现该动脉出现率较恒定,起始部血管外径平均为0.63mm,动脉可解剖长度为7.2cm,血管分布范围包括第一掌骨背侧、部份鱼际区及拇指近节背桡侧5×10cm 的皮肤。以拇指背动脉及与其相连的桡动脉远段为蒂,可以游离成一个理想的岛状皮瓣,适用于拇指再造及邻近的组织缺损修复。 The author in 18 specimens of cadaver hands, the thumb dorsal artery anatomical study showed that the incidence of the artery was relatively constant, the average diameter of the beginning of the vessel 0.63mm, the anatomical length of the artery was 7.2cm, vascular distribution range Including the first metacarpal dorsal, part of the meridian area and thumb near the dorsal radial 5 × 10cm of the skin. With the dorsal artery of the thumb and the distal segment of the radial artery connected to it, it becomes an ideal island flap that is suitable for thumb reconstruction and adjacent tissue defect repair.