邻近非主干动脉重建椎动脉的应用解剖

目的 探讨采用邻近非主干动脉重建椎动脉的解剖学基础。方法 20具（40侧）成人防腐固定尸体标本，观察甲状腺上动脉、甲状腺下动脉、颈横动脉、甲状颈干及椎动脉颅外段的形态学参数，并在2具尸体标本上模拟行吻合血管椎动脉重建术。结果 甲状腺上动脉、甲状腺下动脉及颈横动脉均有2mm以上的外径及合适的可游离长度，具备进行端侧吻合重建椎动脉的解剖学条件。甲状颈干的外径与椎动脉相似，适合端端吻合，但仅有38.5％具有合适的血管干（大于10mm）。模拟手术示这些邻近非主干血管重建椎动脉可行。结论 邻近非主干重建椎动脉具有良好的解剖学基础，适合椎动脉第1、2段疾患的治疗。

ANATOMICAL STUDY OF RECONSTRUCTION OF VERTEBRAL ARTERY WITH NEIGHBORING NON-TRUNK ARTERIES

Objective To study the anatomical basis for reconstruction of vertebral artery with neighboring non trunk arteries. Methods Twenty preserved adult cadavers were used in this study to observe the morphology of superior thyroid artery, inferior thyroid artery, transverse cervical artery, thyrocervical trunk and extracerebral portion of vertebral artery, and reconstruction of vertebral artery with these arteries was simulated in two preserved cadavers. Results The calibers of superior or inferior thyroid artery, or transverse cervical artery were more than 2 mm in diameter, and the arteries had suitable free length for end to side anastomosis with vertebral artery. Thyrocervical artery had similar caliber to vertebral artery so that end to end anastomosis could be carried out between them, but only 38.5% of this artery had adequate artery trunk (more than 10 mm). It was proved from the simulated procedures that the reconstruction of vertebral artery with these neighboring non trunk arteries was possible. Conclusion Reconstruction of vertebral artery with neighboring non trunk arteries has anatomical basis and can be used clinically for treatment of the lesion affecting the first or second portion of vertebral artery.