Multi-Center Prospective Evaluation of Complex Adult Spinal Deformity Surgery (CADS)

Are you eligible to participate in this study?

You may be eligible for this study if you meet the following criteria:

  • Conditions:
    Adult Spinal Deformity
  • Age: Between 18 - 80 Years
  • Gender: Male or Female
  • Other Inclusion Criteria:
    1. Subjects with the diagnosis of adult congenital, degenerative, idiopathic or iatrogenic spinal deformity
    2. Subjects with Full body EOS radiographic assessment (sagittal and coronal visualization from skull to foot)
    3. Complex patients are defined as and meeting any one of the subsequent criteria:
      • Radiographic criteria:
        • PI-LL = 25 degrees
        • TPA = 30 degrees
        • SVA>15cm
        • Thoracic scoliosis = 70 degrees
        • Thoracolumbar/lumbar scoliosis = 50 degrees
        • Global coronal malalignment >7cm
      • Procedural criteria:
        • Posterior spinal fusion > 12 levels
        • 3 column osteotomy or ACR
      • Geriatric criteria:
        • Age >65 years and minimum 7 levels of spinal instrumentation during surgery

You may not be eligible for this study if the following are true:

    1. Subjects with active spine tumor or infection
    2. Subjects who have a deformity due to acute trauma
    3. Subjects with Neuromuscular conditions/diseases (Parkinson’s, Multiple Sclerosis)
    4. Subjects who have syndromic scoliosis
    5. Subjects who have inflammatory arthritis/auto immune diseases including rheumatoid arthritis
    6. Prisoners
    7. Subjects who are pregnant
    8. Non-English speaking subjects



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