Parameters To Be Assessed Demographics, medical history, X-ray results, quality of life (SF-36), CT Scan results, Concomitant medications, adverse events, pregnancy test, Body Mass Index (BMI), Concomitant therapies, diagnosis, comorbidities, fusion rate, visual analogue scale (VAS) for pain, Neck Disability Index (NDI) Questionnaire, Neurological examination results, clinical assessments and device malfunction, type and duration of surgery, OR room time, bone graft details, blood loss, length of hospital stay (LOS),return to work, revision surgeries and complications.