Clinical Outcome after Endoscopic Facet Denervation in Patients with Chronic Low Back Pain.

Several studies have reported that low back pain has a high prevalence among the population, with up to 85%. Percutaneous radiofrequency facet denervation (PRFD) is the gold standard of today's rhizotomy for chronic low back pain (CLBP). However, previously published studies present controversial results for the efficacy of PRFD.