Chronic intractable lumbosacral radicular pain, is there a remedy? Pulsed radiofrequency treatment and volumetric modifications of the lumbar dorsal root ganglia

Purpose Evaluation of clinical and radiological effects of the therapeutic outcome of CT-guided pulsed radiofrequency (PRF) treatment adjacent to the lumbar dorsal root ganglion (DRG) for patients with chronic intractable lumbosacral radicular pain in a single-center prospective longitudinal study in order to evaluate predictive factors of safety and therapeutic success. Materials and methods Thirty patients, from 2016 to 2018, were enrolled (age: 42–80 aa, 66.7% men and 33.3% females) with low back pain, lumbosciatalgia and/or lumbocruralgia, resistant to previous medical and physical treatments for a period not