**2. Contraindications for cervical arthroplasty**

The contraindications for arthroplasty vs. fusion are the same regardless of site of service, i.e., hospital inpatient, hospital outpatient (HOPD) vs. ASC outpatient, with the exception of certain medical co-morbidities which would preclude safe outpatient surgery. The medical co-morbidities that would require hospital inpatient arthroplasty include the following:


Otherwise, the routine contraindications for arthroplasty, regardless of site of service are the following:


5.Osteoporosis or osteopenia (DEXA DMB T-score < −1.5)

6.Severe facet joint disease or degeneration
