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Musculoskeletal and Sports Medicine

(Research Hub Theater) Efficacy of Repetitive Peripheral Magnetic Stimulation for Pain Alleviation in Patients with Chronic Low Back Pain

Thursday, November 16, 2023
12:45 PM – 2:15 PM CT
Background and/or Objectives: To study the effectiveness of repetitive peripheral magnetic stimulation (rPMS) for pain alleviation and functional recovery in patients with chronic low back pain.

Design: Double-blind Randomized Controlled Trial

Setting: The out-patient clinic of Department of Rehabilitation Medicine, Faculty of Medicine Ramathibodi Hospital

Participants: Thirty patients with chronic low back pain aged between 18-60 years

Interventions: The participants were randomly allocated to the rPMS group and the sham treatment. Each subject received the stimulation for 1 session per week with a total of 3 treatment sessions.

Main Outcome Measures: Visual analogue scale (VAS) score was assessed before, after each session, and 1 week after treatment. The Roland-Morris Disability Questionnaire (RMDQ) and Oswestry questionnaire (ODI) were assessed by every patient before and 1 week after treatment for assessment of disability and function.

Results: There was no difference in baseline characteristics, pain VAS, RMDQ and ODI scores of both rPMS and sham groups. The pain VAS score at 1 week after treatment was improved with statistical significance in both groups. Comparing between 2 groups in pre-treatment and each post-treatment, the rPMS group had better outcome with statistical significance. The pain VAS score decrease in rPMS group was markedly reduced after 2nd and 3rd rPMS sessions with the mean (SD) of 2.5 (1.6) and 2.5 (1.4), respectively. The improvement of RMDQ score by median (IQR) was 3.0 (3.0) of the rPMS group and 2.0 (2.0) of the sham group with a p-value of 0.030. The improvement of ODI score by mean (SD) was 5.6 (3.5) of the rPMS group and 2.4 (1.8) of the sham group with a p-value of 0.048.

Conclusions: Three sessions of rPMS combined with conservative treatment can constitute an effective treatment in terms of pain, function, and disability in chronic low back pain patients significantly compared with conservative treatment alone.