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J Rehabil Med. 2007 May;39(5):374-8.

Intramuscular and nerve root stimulation vs lidocaine injection to trigger points in myofascial pain syndrome.

Author information

1
Department of Family Medicine, Inha University College of Medicine, Incheon, Korea.

Abstract

OBJECTIVES:

To compare the efficacies of an intramuscular stimulation technique and 0.5% lidocaine injection to trigger points in myofascial pain syndrome.

PARTICIPANTS:

Forty-three people with myofascial pain syndrome of the upper trapezius muscle.

INTERVENTIONS:

Twenty-two subjects were treated with intramuscular stimulation and another 21 with 0.5% lidocaine injection at all the trigger points on days 0, 7 and 14.

RESULTS:

Intramuscular stimulation resulted in a significant reduction in Wong-Baker FACES pain scale scores at all visits and was more effective than trigger point injection. Intramuscular stimulation also resulted in significant improvement on the Geriatric Depression Scale - Short Form. Local twitch responses occurred in 97.7% (42/43) of patients. All the passive cervical ranges of motion were significantly increased. Post-treatment soreness was noted in 54.6% of patients in the intramuscular stimulation group and 38.1% in the trigger point injection group, respectively, and gross subcutaneous haemorrhage (> 4 cm2) was seen in only one patient in the trigger point injection group.

CONCLUSION:

In managing myofascial pain syndrome, after one month intramuscular stimulation resulted in more significant improvements in pain intensity, cervical range of motion and depression scales than did 0.5% lidocaine injection of trigger points. Intramuscular stimulation is therefore recommended for myofascial pain syndrome.

PMID:
17549328
DOI:
10.2340/16501977-0058
[Indexed for MEDLINE]
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