You will have follow-up visits scheduled at 3, 6, 9, 12, 18, and 24 months and then every 6 months for the rest of your life. At all follow-up visits, you will be asked questions about your medical history, have a neurological exam, and your neurologic function will be evaluated. Any pain medication you are taking will be noted. You will be asked to have a MRI of the spine at 3, 6, 9, 12,18, and 24 months, then once a year for the rest of your life. You will also be asked to complete 3 questionnaires to evaluate your symptoms, pain, and quality of life at each follow-up visit. Each questionnaire should take around 5 minutes to complete.