Intraoperative Alignment in Adult Spinal Deformity Surgery

A Prospective, Single-center Study of the Utility of the ATEC IOA Imaging Platform Tool in Intraoperative Imaging for Patients Undergoing Adult Spinal Deformity Surgery.

The purpose of this study is to conduct a prospective study which assesses the utility of the ATEC Intraoperative Alignment (IOA) Imaging Platform tool in intraoperative imaging for patients undergoing adult spinal deformity surgery. The study aims to compare the precision of the ATEC IOA Imaging Platform to current standard 36" cassette intraoperative x-rays, as well as compare intraoperative versus postoperative standing alignment.

Inclusion Criteria:

1. Skeletally mature patients

2. Able to give informed consent

3. Sagittal Spinal Deformity patients as defined by any of the following radiographic criteria:

   • Coronal cobb angle >20 degrees
   • Pelvic Tilt >25degrees
   • Sagittal Vertical Axis >50mm
   • Pelvic Incidence - Lordosis of >10 degrees
   • Thoracic Kyphosis >60 degrees

4. Or clinically indicated for spinal fusion T10-Pelvis or more levels fused

5. Or adult degenerative pathology requiring 2 or more levels fused

Exclusion Criteria:

1. Under the age of 18 years old
2. Skeletally immature patients
3. Active infection
4. Presence of inflammatory spinal disease (e.g. ankylosing spondylitis, Diffuse Idiopathic Skeletal Hyperostosis (DISH), Rheumatoid Arthritis)
5. Concurrent Spinal or pelvic fracture
6. Vulnerable patient (pregnant, prisoner, inability to consent)