Electromagnetic fields in the treatment of chronic lower back pain in patients with degenerative disc disease

Aim: To examine the effects of low-amplitude, low frequency electromagnetic field therapy (EMF) therapy in patients with persistent chronic lower back pain associated with degenerative disc disease. Design: Double-blind, randomized and placebo controlled. Intervention: EMF using a medical device resonator; control group underwent same procedures, except the device was turned off. Outcome measures: Pain reduction and mobility. Results: Improvements in overall physical health, social functioning and reduction in bodily pain were observed in the EMF group. The pain relief rating scale showed a higher level of pain relief at the target area in the EMF group. An increase in left lateral mobility was seen only in the EMF group. Conclusion: EMF treatment may be of benefit to patients with chronic nonresponsive lower back pain associated with degenerative disc disease. Lay abstract: In this preliminary study, we examined the possible value of using a medical device that generates low energy electromagnetic fields for reducing pain and increasing movement in individuals with persistent lower back pain associated with degeneration of the discs of the spine. After five treatment sessions (each lasting 1 h) over a 2-week period, it was found that as compared with those individuals that were not exposed, low energy electromagnetic fields at the pain area may not only improve physical functioning, but also may reduce pain.