Developmental Spondylolisthesis: Natural History & Surgery (Spondy)


A multi-center study enrolling patients undergoing non-operative and surgical treatment of spondylolisthesis. The purpose of this study is to determine whether specific radiographic measurements may be predictive of outcome in surgery for spondylolisthesis. Patient participation includes answering questionnaires at clinic visits and releasing your x-ray and clinical information to be used in the database.



  • Any age, Male or Female Diagnosed with developmental spondylisthesis at L5-S1.
  • Patients who have undergone previous spine surgery can not participate.
  • Branch A: Natural History Patients undergoing non-operative treatment
  • Branch B: Surgical Patients with an indication for surgical treatment as determined by the treating physician