Safety Study of Preservon-Treated Bone Implants for Cervical Fusion in the Treatment of Cervical Radiculopathy or Myelopathy

Inclusion Criteria: * Patient is skeletally mature * Patient has confirmed radiculopathy or myelopathy * Pain unresponsive to non-operative treatment * Radicular pain in either or both upper extremities * Neurological deficit in distribution of nerve root from C3/4 to C6/7 * Patient's lateral cervical spine x-rays show inferior aspect of lowest vertebral body to be fused * Patient agrees to comply with protocol * Patient can provide voluntary informed consent and follow-up information Exclusion Criteria: * Patient has previous cervical spine surgery * Patient requires concurrent posterior surgery at level to be treated, or anterior and posterior surgery at any other cervical level * Patient has clinically compromised vertebral body structure * Patient has multi-level fixed/ankylosed cervical spine * Patient has signs of significant instability at level to be treated or adjacent level * Patient has history of metabolic bone disease * Patient is taking chronic oral/IV corticosteroid therapy OR medications that potentially interfere with bone/soft tissue healing * Patient has progressive neuromuscular disease, rheumatoid arthritis, active malignancy, OR any other condition that interferes with self-assessment of pain, function, or quality of life * Patient has OPLL at any level * Patient has active infection, local or systemic * Patient is pregnant or considering pregnancy (x-ray requirements) * Patient is participating in another investigational study * Patient belongs to vulnerable population