Abstract
目的 为手指末节外伤的修复特别是感觉的恢复提供解剖学依据.方法在12只经动脉灌注红色乳胶的成人新鲜手标本上,手术显微镜下观察、测量手指末节区域内神经与血管的走行、分支、分布、外径及二者的形态学关系.结果指掌侧固有神经多在末节指动脉弓起始处跨过指动脉行向指腹及侧背部,主干分两支,其内外支起始处横径分别为0.7~0.9 mm、0.7~0.8 mm,在半月线平面的横径分别为0.6~0.8 mm、0.5~0.7 mm,左右分支间相互交叉分布,其分支比伴行的动脉低且稍粗.结论指神经多在末节指骨底分支到指腹、指尖和指背,末节断指再植神经、血管吻合的适宜解剖区为远侧指间关节至指甲中1/3区。
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