第一掌骨与大多角骨的动脉供应及其临床意义

ARTERIAL SUPPLY OF FIRST METACARPAL BONE AND TRAPEZIUM AND ITS CLINICAL SIGNIFICANCE

本文用灌注、透明等方法,观察了166例第一掌骨与大多角骨的动脉供应.第一掌骨的滋养动脉均来自拇主要动脉,从该骨中1/3段的掌侧入骨.骺与干骺动脉分别来自位于该骨近、远侧端的近、远侧动脉环.大多角骨的动脉来自桡动脉及其掌浅支,从该骨的背侧、桡侧和掌侧入骨.本文试就某些临床问题进行探讨.

The arterial supply of human first metacarpal bone and carpal trapezium was studied in 166 specimens by perfusing and clearing techniques. The nutrient artery to the first metacarpal bone originates from the princeps pollicis artery and pierces the shaft palmarly in the middle third of the bone. The epiphyseal and metaphyseal arteries to the first metacarpal bone stretch from the proximal and distal arterial rings which situate at the proximal and distal ends of the bone respectively. The arterial supply of the trapezium mainly run from the radial artery and its superficial palmar branch to enter the bone through the dorsal, radial and palmar sides. Their clinical significance has been discussed based on the results obtained.