You will be asked questions about your medical history and have a complete neurological exam during your first consultation. The neurological exam involves testing upper and lower motor strength, sensation to light touch, reflexes, mental exam, and way you walk. MRI of the spine must be performed within 1 month of registration. You will be asked to complete 3 questionnaires to evaluate your symptoms and pain. Each questionnaire will take around 5 minutes to complete, and should be completed within 1 month of being enrolled in the study.