Electrical twitch-obtaining intramuscular stimulation in lower back pain: a pilot study

Area of Science:

• Pain Management
• Neuromodulation
• Rehabilitation Medicine

Background:

• Myofascial lower back pain is a common condition impacting quality of life.
• Current treatments offer variable efficacy, necessitating exploration of novel therapeutic approaches.

Purpose of the Study:

• To compare the effectiveness of electrical twitch-obtaining intramuscular stimulation (ETOIMS) against muscle stimulation and skin stimulation for myofascial lower back pain relief.

Main Methods:

• A single-blinded, crossover pilot trial involving 12 acupuncture-naive patients with chronic lower back pain.
• Treatments included monopolar needle electrode insertion into paraspinal muscles, overlying skin, or paraspinal muscles with ETOIMS.
• Pain levels were assessed using the visual analog scale (VAS) before, immediately after, and for two weeks following each treatment.

Main Results:

• ETOIMS demonstrated a significant and immediate reduction in VAS scores.
• Both muscle stimulation and ETOIMS showed immediate improvement in one physical test.
• Sustained VAS reduction was significantly greater with ETOIMS compared to muscle and skin stimulation over two weeks post-treatment.

Conclusions:

• ETOIMS provides superior immediate and sustained pain relief for myofascial lower back pain compared to muscle and skin stimulation.
• While ETOIMS showed a trend towards greater percentage pain reduction, statistical significance was not reached for this measure.