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| Effect of pulsed electromagnetic field on neurogenic claudication and pain in lumbar canal stenosis patients: a randomized controlled trial |
| Zidan FS, Ahmed GM, Fahmy EM, Ramadan H, Elbalawy YM |
| NeuroQuantology 2022;20(7):2532-2538 |
| clinical trial |
| 6/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: Yes; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed* |
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BACKGROUND: Lumbar canal stenosis (LCS) is a significant cause of disability, and considered the most significant cause of spinal surgery in elderly. Pulsed electromagnetic fields (PEMF) plays an essential part in alleviating pain as it has thermal and non-thermal effect with low risk. PEMF boost cellular activity, healing and repair. Aims: to identify the influence of Pulsed Electromagnetic Field on neurogenic claudications and pain in adult and elderly patients with LCS. METHODS AND PARTICIPANTS: Thirty participants with chronic lumbar canal stenosis from both genders were randomized into 2 groups; study group and control group. INTERVENTIONS: The study group given pulsed electromagnetic field therapy as well as a selected physiotherapy program, but the control group given the same selected physiotherapy program only. Both groups got 12 treatment sessions over successive four weeks period. THE OUTCOME MEASURES: Standardized treadmill test was used to assess neurogenic claudication and the Arabic version of the Short-Form of the McGill Pain Questionnaire (SF-MPQ) and Visual Analouge Scale (VAS) were implemented to assess pain intensity before and after treatment. RESULTS: No statistically significant difference has been detected between 2 groups in all measured variables pre-treatment. In the 2 groups post treatment, there was a statistically significant decrease in (VAS), Present pain intensity (PPI), and total MPQ scores. Also, there was a significant increase in time to first pain and total walked distance and a significant decline in final pain intensity in the 2 groups post treatment. Post treatment, there was a significant decrease in the study group's mean VAS, PPI, and total MPQ scores compared to the control group. On the other hand, there was no noticeable difference in time to first pain, final pain intensity and total walked distance between groups post treatment. CONCLUSIONS: Pulsed electromagnetic field is beneficial for alleviating pain but had no benefit in treating neurogenic claudication in patients with chronic lumbar canal stenosis.
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