Relationship between paravertebral muscle twitching and long-term effects of radiofrequency medial branch neurotomyRelationship between paravertebral muscle twitching and long-term effects of radiofrequency medial branch neurotomy
- Other Titles
- Relationship between paravertebral muscle twitching and long-term effects of radiofrequency medial branch neurotomy
- Authors
- 고재철; 김도형; 이윤우; 최종범; 하동훈; 안지원
- Issue Date
- 2017
- Publisher
- 대한통증학회
- Keywords
- Ablation technique; Facet joint; Fasciculation; Innervation; Lower back pain; Prognosis; Radio-frequency catheter ablation.
- Citation
- The Korean Journal of Pain, v.30, no.4, pp.296 - 303
- Indexed
- SCOPUS
KCI
- Journal Title
- The Korean Journal of Pain
- Volume
- 30
- Number
- 4
- Start Page
- 296
- End Page
- 303
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/85293
- ISSN
- 2005-9159
- Abstract
- Background: To achieve a prolonged therapeutic effect in patients with lumbar facet joint syndrome, radiofrequency medial branch neurotomy (RF-MB) is commonly performed. The purpose of this study was to evaluate the prognostic value of paravertebral muscle twitching when performing RF-MB in patients with lumbar facet joint syndrome.Methods: We collected and analyzed data from 68 patients with confirmed facet joint syndrome. Sensory stimulation was performed at 50 Hz with a 0.5 V cut-off value. Patients were divided into 3 groups according to the twitching of the paravertebral muscle during 2 Hz motor stimulation: ‘Complete’, when twitching was observed at all needles; ‘Partial’, when twitching was present at 1 or 2 needles; and ‘None’, when no twitching was observed. The relationship between the long-term effects of RF-MB and paravertebral muscle twitching was analyzed.Results: The mean effect duration of RF-MB was 4.6, 5.8, and 7.0 months in the None, Partial, and Complete groups, respectively (P = 0.47). Although the mean effect duration of RF-MB did not increase significantly in proportion to the paravertebral muscle twitching, the Complete group had prolonged effect duration (> 6 months) than the None group in subgroup analysis. (P = 0.03).Conclusions: Paravertebral muscle twitching while performing lumbar RF-MB may be a reliable predictor of long-term efficacy when sensory provocation under 0.5 V is achieved. However, further investigation may be necessary for clarifying its clinical significance. (Korean J Pain 2017; 30: 296-303)
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