Sakaura et al. anterior decompression and arthrodesis through a lateral approach. A, Axial image of lateral approach to cervical spine. B, Vertebral artery and C4-C6 nerve roots posterior to the vertebral artery. C, Vertebral artery anteriorly dislocated by resecting transverse processes from C3 to C6. D, Subtotal removal of C4 and C5 bodies and cutting of posterior longitudinal ligament.