Clinical Study Of Pulsed Radiofrequency In Lumbosacral Radicular Pain

Objective: To analyze the clinical characteristics of hospitalized patients with low back and leg pain based on pathophysiological classification,retrospectively analyze the treatment effect of special types of lumbosacral radicular pain treated by dorsal root ganglion pulse radiofrequency modulation,and explore the clinical effect of dorsal root ganglion pulse radiofrequency modulation.Methods: The data of all hospitalized patients with low back pain in the pain department of the Third Xiangya Hospital of Central South University from August 2019 to February 2021 were screened.The included patients were classified based on pathophysiology according to the discharge diagnosis,and their clinical data characteristics were analyzed;The therapeutic effects of special types of lumbosacral radicular pain treated with pulsed radiofrequency of dorsal root ganglion were analyzed retrospectively.The pain before and after operation,the first,third and sixth months after discharge and the last follow-up were evaluated by VAS score,and the drug use and surgical complications before and after treatment were recorded.Results: A total of 213 hospitalized patients with low back and leg pain were included in this study,including 105 patients with lumbosacral radicular pain,accounting for 49.2% of the total number.The age was mainly over 60 years old,including 34 patients who underwent pulsed radiofrequency of dorsal root ganglion.According to the etiology,the 34 patients were divided into three subgroups: lumbar disc herniation group(8 cases)lumbar spinal stenosis group(6 cases)and lumbar postoperative pain syndrome group(20cases).The overall VAS score after operation was 4.4 ± 1.1 lower than that before operation;The VAS scores of the three groups decreased by4.37 ± 2.39,4.50 ± 2.56 and 3.90 ± 1.86 respectively in the first month after discharge(P < 0.05);After a median follow-up of 9.5 months,the VAS score at the last follow-up decreased by 4.5 ± 2.34,4.83 ± 2.11 and3.70 ± 2.00 respectively(P < 0.05);At the last follow-up,the overall VAS score decreased from 6.5 ± 1.0 to 2.4 ± 1.9(P < 0.05).Meanwhile,the postoperative follow-up found that the patients did not continue to use NSAIDs drugs;The number of users of calcium channel regulators decreased by 56.2%;No serious adverse reactions were observed in the three groups.Conclusion: Neuropathic pain is the most common cause of low back pain in hospitalized patients,and mostly occurs in elderly patients over 60 years old.Low back pain caused by lumbar disc herniation,lumbar spinal stenosis and pain syndrome after lumbar surgery is the most common cause of neuropathic pain.Pulsed radiofrequency is an effective method for the treatment of special types of lumbosacral radicular pain.