Clinical Trials

Inclusion Criteria:

• Patients at least 18 years of age with symptomatic lumbar spinal stenosis and single-level grade I degenerative spondylolisthesis (3 –14 mm).
• Symptomatic spinal stenosis will be defined as radicular and/ or back pain either induced or aggravated by activity and relieved by rest in a patient with either moderately

Exclusion Criteria: 

• Serious medical illness (ASA Class IV or higher)
• Spondylolysis, multilevel spondylolisthesis, or high grade spondylolisthesis
  (Grade II or greater than 14 mm)
• Subjects will be enrolled by participating spine surgeons who are investigators in the study. These patients will be identified within the existing practice of each surgeon. There will be no advertising or any effort to recruit patients into the study from outside the practice of a study surgeon investigator.