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Posterior access to C0-C5

Some surgeons prefer to cut the C2 nerve to gain wide exposure to this area. However, 15-20% of patients whose C2 nerves are cut will develop chronic pain requiring medications.

Also, 10-15% may have an intersegmental artery or an anomalous vertebral artery along with the nerve in this region. Anomalous vertebral artery can be visualized upon careful review of the preoperative MRI.