The Spine SLIP Study

Recruitment goal is met. Study remains active.


Study Entry Criteria:

  1. Age 50 between 75
  2. Symptomatic spinal stenosis
    • Radicular and/ or back pain either induced or aggravated by activity
    • Relieved by rest
    • Moderately severe or severe spinal stenosis as determined by an independent radiologist.
  3. Single level grade I degenerative spondylolisthesis (3 -14 mm)

Study Exclusion Criteria:
  1. Gross spinal instability
    • Movement greater than 3 mm on flexion/ extension studies
  2. Previous lumbar spinal surgery
  3. Serious medical illness (ASA Class III or higher)
  4. Multilevel spondylolisthesis or high grade spondylolisthesis (Grade II or greater than 14 mm)