A pragmatic randomized prospective trial of cooled radiofrequency ablation of the medial branch nerves versus facet joint injection of corticosteroid for the treatment of lumbar facet syndrome: 12 month outcomes.

"Conflicts of interest: Zachary L. McCormick, MD, has received research funding from Avanos Medical (paid directly to the University of Utah) and serves on the Board of Directors of the Spine Intervention Society (SIS). There are no other potential conflicts of interest to disclose on the part of any of the other authors."

"Funding This study was funded by (1) an investigator-initiated research grant from Avanos Medical, (2) the University of Utah Carol and Leonard Raizin Spine Research Grant, and (3) University of Utah Judith Victor Spine Research Grant. Conflicts of interest: Zachary L. McCormick, MD, has received research funding from Avanos Medical (paid directly to the University of Utah) and serves on the Board of Directors of the Spine Intervention Society (SIS). There are no other potential conflicts of interest to disclose on the part of any of the other authors."

"Trial registration details ClinicalTrials.gov (NCT03614793); August 3, 2018."