Mestdagh H, Bailleul J P, Chambon J P, Laraki A
Acta Morphol Neerl Scand. 1979 Feb;17(1):73-80.
The gross examination of 50 minium injected specimens showed us the various patterns of the posterior arterial network of the wrist. This is chiefly provided by the radial artery which gives off a constant dorsal carpal branch over the posterior aspect of the trapezium. This vessel crosses the carpus transversely to the inner border of the hand and is joined in half of the cases by the interosseous artery; contribution of the posterior carpal branch of the ulnar artery was more rarely found than usually described (25%). From the arch thus formed are given off short branches which run upwards along the intercarpal joints and enter the posterior aspects of the proximal carpal bones whose lower halves seem to be the most favorably supplied. On the contrary, the distal carpal bones receive several short twigs which penetrate their posterior surfaces. Although the arrangement of the pedicles may undergo many a variation, attention must be drawn to the fact that the dorsal arteries are smaller but denser than the volar, except for the hamate. Therefore 2 different patterns of arterial supply can be described at the carpus: the blood supply of the outer and axial bones--scaphoid, trapezium, lunate, capitate--derives from the radial and the interosseous arteries and is probably shared equally by volar and dorsal branches; the inner bones--triquetrum, hamate--are primarily supplied by volar or medial branches coming almost exclusively from the ulnar artery.
对50个注入铅丹的标本进行大体检查，向我们展示了腕部后动脉网的各种形态。这主要由桡动脉提供，桡动脉在大多角骨后方发出恒定的腕背支。该血管横向穿过腕部至手部内侧缘，半数情况下与骨间动脉相连；尺动脉腕背支的供血情况比通常描述的更为少见（25%）。从这样形成的动脉弓发出短支，沿腕骨间关节向上走行，进入近端腕骨的后面，近端腕骨的下半部似乎供血最为良好。相反，远端腕骨接受数条短支，这些短支穿入其后面。尽管血管蒂的排列可能有多种变化，但必须注意到，除钩骨外，手背动脉比手掌动脉细小但更为密集。因此，腕部可描述为两种不同的动脉供血模式：外侧和轴位骨——舟骨、大多角骨、月骨、头状骨——的血液供应来自桡动脉和骨间动脉，掌侧和背侧分支可能均分供血；内侧骨——三角骨、钩骨——主要由几乎完全来自尺动脉的掌侧或内侧分支供血。
