1. Language problems that would prevent from properly understanding instructions.

2. Patients less than 18 years of age.

3. Requirement of an interpreter.

4. Patients who are excluded from consideration for the surgical procedure are therefore excluded from the research study.

5. Special populations: pregnant women, prisoners.

6. Minimally invasive spine surgery that does not expose the necessary bone/s.

7. Spine surgery without posterior exposure.

Spine Registration Using 3D Scanning - Arise