Radio-anatomic study of the carotid axis with regard to the implantation of microsurgical vascular anastomoses.

The authors report a radio-anatomic study of the carotid axis in the context of the implantation of microsurgical vascular anastomoses. The information derived from 36 dissections and 50 arteriographic studies suggests the preferential use of the superior thyroid, facial and lingual branches. Section and turning-down of the external carotid and direct end-to-side implantation on the common carotid could provide fall-back solutions when the collaterals are slender. Because of anatomic variations and frequent atheromatous lesions, arteriographic study before implantation appears essential.