Could amniotic fluid beat steroids for spinal stenosis pain?

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patients who are ≥ 18 years old 2. Pain in the low back and lower extremity (pain NRS \>4) with buttock/leg pain \> back pain. 3. Radicular distribution of leg pain based on history and correlation with advancing imaging. Radicular pain may be fixed or claudicatory in nature. 4. Pain resistant to a trial of conservative therapy (i.e. oral steroids, NSAIDs, opioids, muscle relaxants, physical therapy, chiropractic or other non-invasive care) for at least 3 months. 5. Mild-moderate-severe lumbar foraminal or subarticular zone stenosis, and/or mild-moderate central canal spinal stenosis identified by MRI or CT scan according to radiologic criteria (Boden 1996). 6. Ability to read English and complete the assessment questionnaires. 7. Must have been 90 days since last steroid injection. Exclusion Criteria: 1. Patients in the opinion of the treating investigator who are unwilling or unable to comply with study procedures. 2. Systemic infection or local infection over planned injection site. 3. Bleeding disorder, current use of anticoagulants or anti-platelet medications. 4. Intrinsic spinal cord lesions. 5. History of central neurologic, cerebrovascular, demyelinating or muscular disease. 6. Severe vascular, pulmonary or coronary artery disease that limits ambulation including recent myocardial infarction (within the last 6 months). 7. Allergy to medications being used for injection procedures. 8. Women who are pregnant, breastfeeding, or plan to become pregnant while participating in the study. If of child-bearing potential, unwillingness to use effective birth control while participating in the study. 9. Cognitive deficit or motor neuron disease. 10. Spinal instability requiring surgery. 11. History of spinal fusion surgery 12. Metastatic cancer. 13. Concordant pain with internal rotation of the hip (or known hip joint pathology)