C2 Neurectomy during Posterior Atlantoaxial Instrumentation: Feasibility and Facts

BACKGROUND CONTEXT: For C1–C2 (atlantoaxial) instability and other pathologies of axial spine, posterior C1–C2 instrumentation is a feasible approach with highly successful rate of cervical spine fusion. With technical expertise, the fusion rates approach 95%–100%. Nevertheless, poor visualization of lateral mass of C1 due to C2 nerve root and/or C2 ganglia, blood loss from venous plexus around vertebral artery and compression of C2 nerve from lateral mass screw are technical issues during posterior C1–C2 instrumentation.

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