Marx A, Preisser P, Peek A, Partecke B D
Abteilung für Handchirurgie, Plastische und Mikrochirurgie, Zentrum für Schwerbrandverletzte, Berufsgenossenschaftliches Unfallkrankenhaus Hamburg.
Handchir Mikrochir Plast Chir. 2001 Mar;33(2):77-82. doi: 10.1055/s-2001-12289.
By dissections of 20 cold-preserved hands, we investigated the dorsal metacarpal arteries (DMA) with regard to reliability, origin and anastomoses. The first dorsal metacarpal artery showed a trifurcation with three vessels: Ramus ulnaris (A. metacarpalis dorsalis I), Ramus medialis and Ramus radialis (A. ulnodorsalis pollicis). The DMA II to IV were observed medially in their respective intermetacarpal spaces. The A. metacarpalis dorsalis V was unreliable in reaching the skin of dorsal proximal phalanges as in the DMA IV. Most reliable for reaching the skin of dorsal proximal phalanges were the radial arteries--first, second and third dorsal metacarpal arteries. The dorsal digital arteries originate close to one another at the level of the metacarpophalangeal joints. There was an increase of epifascial position, from radial to ulnar. Irregular palmar intermetacarpal anastomoses were found proximal to the ligamentum metacarpale transversum profundum but nearly consistently in the web space.
通过对20只冷保存手的解剖，我们研究了掌背动脉（DMA）的可靠性、起源和吻合情况。第一掌背动脉呈三叉状，有三支血管：尺侧支（第一掌背动脉）、内侧支和桡侧支（尺背侧动脉）。第二至第四掌背动脉在各自的掌骨间隙内侧被观察到。第五掌背动脉与第四掌背动脉一样，在到达近节指骨背侧皮肤方面不可靠。最可靠到达近节指骨背侧皮肤的是桡动脉——第一、第二和第三掌背动脉。指背动脉在掌指关节水平彼此靠近起源。从桡侧向尺侧，筋膜外位置增加。在掌骨深横韧带近端发现不规则的掌骨间吻合，但在指蹼间隙几乎始终存在。
