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. 2015 Oct 19;7(10):e356. doi: 10.7759/cureus.356

Figure 4. Three-dimensional Reconstruction of the Computed Tomography Angiography with Testing Different C1-C2 Fusion Screw Angle in Relation to the Vertebral Artery.

Figure 4

Three-dimensional reconstruction of the computed tomography angiography on the Siemens Leonardo system with testing different C1-C2 fusion screw angles in relation to the vertebral artery. This preoperative assessment of the entrance points and the screw’s angle penetration will help to realize anatomical variations and prevent VA injury.