Percutaneous pulsed radiofrequency treatment of dorsal root ganglion for treatment of lumbar facet syndrome

2020 ◽  
Vol 199 ◽  
pp. 106253
Author(s):  
Wael Mohamed Moussa ◽  
Wael Khedr ◽  
Medhat Elsawy
2018 ◽  
Vol 1 (21;1) ◽  
pp. E97-E103 ◽  
Author(s):  
Min Cheol Chang

Background: Patients with lumbosacral radicular pain may complain of persisting pain after monopolar pulsed radiofrequency (PRF) treatment. Objective: We evaluated the effect of bipolar PRF stimulation of the dorsal root ganglion (DRG) in patients with chronic lumbosacral radicular pain who were unresponsive to both monopolar PRF stimulation of the DRG and transforaminal epidural steroid injection (TFESI). Study Design: This is a prospective observational study. Setting: The outpatient clinic of a single academic medical center in Korea. Methods: We retrospectively reviewed data from 102 patients who had received monopolar PRF to the DRG for management of lumbosacral radiculopathy. Of these, 32 patients had persistent radicular pain that was scored at least 5 on a numeric rating scale (NRS). Twenty-three of them were included in this study and underwent bipolar PRF of the DRG. The outcomes after the procedure were evaluated using the NRS for radicular pain before treatment and 1, 2, and 3 months after treatment. Successful pain relief was defined as ≥ 50% reduction in the NRS score compared with the score prior to treatment. Furthermore, at 3 months after treatment, patient satisfaction levels were examined. Patients reporting very good (score = 7) or good results (score = 6) were considered to be satisfied with the procedure. Results: The NRS scores changed significantly over time. At 1, 2, and 3 months after bipolar PRF, the NRS scores were significantly reduced compared with the scores before the treatment. Twelve (52.2%) of the 23 patients reported successful pain relief and were satisfied with treatment results 3 months after bipolar PRF. No serious adverse effects were recorded. Limitations: A small number of patients were recruited and we did not perform long-term follow-up. Conclusion: We believe the use of bipolar PRF of the DRG can be an effective and safe interventional technique for chronic refractory lumbosacral radiculopathy. It appears to be a potential option that can be tried before proceeding to spinal surgery. Key words: Bipolar, pulsed radiofrequency, lumbosacral radicular pain, chronic pain, dorsal root ganglion, spinal stenosis, herniated disc


Author(s):  
Jan Van Zundert ◽  
M. Puylaert ◽  
K. Van Boxem ◽  
P. Van Elderen ◽  
P. De Vooght ◽  
...  

2005 ◽  
Vol 102 (1) ◽  
pp. 125-131 ◽  
Author(s):  
Jan Van Zundert ◽  
Anton J. A. de Louw ◽  
Elbert A. J. Joosten ◽  
Alfons G. H. Kessels ◽  
Wiel Honig ◽  
...  

Background Pulsed radiofrequency treatment has recently been described as a non-neurodestructive or minimally neurodestructive alternative to radiofrequency heat lesions. In clinical practice long-lasting results of pulsed radiofrequency treatment adjacent to the cervical dorsal root ganglion for the management of chronic radicular spinal pain have been reported without neurologic complications. However, the mode of action is unclear. An early (3 h) effect of pulsed radiofrequency as measured by an increase of c-Fos in the pain-processing neurons of the dorsal horn of rats has been described in the literature. This effect was not mediated by tissue heating. The authors investigated a possible late or long-term effect of three different radiofrequency modalities. Methods Cervical laminectomy was performed in 19 male Wistar rats. The cervical dorsal root ganglion was randomly exposed to one of the four interventions: sham, continuous radiofrequency current at 67 centigrades, or pulsed radiofrequency current for 120 s or 8 min. The animals were sacrificed and the spinal cord was prepared for c-Fos labeling 7 days after the intervention. Results The number of c-Fos immunoreactive cells in the dorsal horn was significantly increased in the three different radiofrequency modalities as compared with sham. No significant difference was demonstrated between the three active intervention groups. Conclusions The authors demonstrated a late neuronal activity in the dorsal horn after exposure of the cervical dorsal root ganglion to different radiofrequency modalities, which was not temperature dependent.


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