[Myofascial pain syndrome treated with sparrow-pecking moxibustion at trigger points: a randomized controlled trial]

To compare the efficacy difference in treatment of myofasical pain syndrome between sparrow-pecking moxibustion and acupuncture at trigger points so as to provide the reference of the effective therapeutic method for myofascial pain syndrome.

Ninety patients were randomized into a sparrow-pecking moxibustion group and an acupuncture group, 45 cases in each one. The trigger points were selected in pain areas in the two groups. In the sparrow-pecking moxibustion group, the sparrow-pecking moxibustion was applied, 30 min in each time. In the acupuncture group, the filiform needles were inserted obliquely at 45 degrees and retained for 40 min in each treatment. The treatment was given once a day and 10 treatments made one session in the two groups. The short-form McGill pain questionnaire was used as the observation index, and the changes in pain rating index (PRI), present pain intensity (PPI) and visual analogue scale (VAS) before and after treatment were used for efficacy assessment.

The results of PRI, PPI and VAS after treatment were reduced apparently as compared with those before treatment in the sparrow-pecking moxibustion group and the acupuncture group (all P<0.001). The differences in PRI, PPI and VAS after treatment were not significant in comparison of the two groups (both P>0.05). The curative and remarkably effective rate was 80.0% (36/45) in the sparrow-pecking moxibustion group, which was better than 40.0% (18/45, P<0.001) in the acupuncture group.

Sparrow-pecking moxibustion at trigger points achieves the superior efficacy on myofascial pain syndrome as compared with acupuncture at trigger points. This therapy is simpler in operation additionally.