Kim SJ, et al. - In this retrospective study, the predictors of the analgesic efficacy of pulsed dorsal root ganglion (DRG) radiofrequency (RF) treatment in patients with chronic lumbosacral radicular pain were assessed via analyzing 60 patients who underwent pulsed DRG RF treatment from 2006 to 2017 at researchers' clinic. The observations revealed the absence of comorbid musculoskeletal pain and positive response to previous epidural steroid injection as independent predictors of the analgesic efficacy of pulsed DRG RF treatment.