C1 lateral mass screw insertion with protection of C1-C2 venous sinus: technical note and review of the literature.

Study Design.This is a technical note and review of the literature.Objective.We propose to describe a revised surgical technique of C1 lateral mass screw insertion with protection of C1-C2 venous sinus surrounding the C2 nerve root.Summary of Background Data.During C1 lateral mass screw insertion an