OssDsign® Spine Registry Study ("Propel")

* The patient has been diagnosed as a candidate for spinal fusion surgery for which the surgeon has decided an OssDsign® bone graft is appropriate. * The patient is ≥21 years old. * The patient is, in the investigator's opinion, psychosocially, mentally, and physically able to fully comply with this protocol, including the post-operative regimen, required follow-up visits, the filling out of required forms, and have the ability to understand and give written informed consent * The patient is willing and able to participate in post- operative clinical and radiographic follow up evaluations for 2 years. Exclusion Criteria: * Patients not meeting all of the inclusion criteria