Title: Microsurgical anatomy of the drainage pathways of the temporal bridging veins
Abstract: Objective To investigate systematically the drainage pathways of the veins and the surgical anatomy of the bridging veins. Methods we exposed the lateral and basal surfaces of the lobes in 20 cadaver heads, and examined the locations of the cortical veins, the terminations of the bridging veins, the locations of the temporal segments of the veins of and the lengths of the infratemporal segments of the veins of Labbe. Results There were three configurations, the separated type, the bundle and the multiple type, defined as the bridging veins, and the second type was the major configurations.The locations of terminations of the bridging veins were divided into 4 groups: the transverse sinus group(55%), the posterior tentorial group(22%), the superior petrosal sinus(17%), and the anterior tentorial group(6%).The majority of the temporal segments of the veins of were present at the regions of the posterior and middle veins, and most of the lengths of the infratemporal segments were 1~2cm. Conclusion Anterior drainage of the vein of Labbe is a special type of the vein, which is of clinical significance in operative exposure.The preoperative venous phase angiogram or magnetic resonance venogram should be scrutinized carefully.It is recommended to preserve all venous structures during petrosal approaches.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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