• Jose V León-Hernández, Aitor Martín-Pintado-Zugasti, Laura G Frutos, Isabel M Alguacil-Diego, Ana I de la Llave-Rincón, and Josue Fernandez-Carnero.
• Department of Physical Therapy, Faculty of Health Science, The Center for Advanced Studies University La Salle, Universidad Autónoma de Madrid, Aravaca, Madrid, Spain.
• Rev Bras Fisioter. 2016 Jul 11; 20 (5): 422-431.

BackgroundDry needling (DN) and percutaneous electrical nerve stimulation (PENS) are widely used techniques in the treatment of myofascial pain.ObjectiveTo investigate the immediate and short-term effects of the combination of DN and PENS compared to DN alone on the upper trapezius muscle.MethodThis is a 72-hour follow-up single-blinded randomized controlled trial. Sixty-two volunteer patients with chronic myofascial neck pain with active Myofascial Trigger Points (MTrPs) in the upper trapezius muscle were recruited. Randomization was performed, and 31 patients received DN treatment (DN group) and 31 received DN and PENS (DN+PENS group). The primary outcomes were neck disability index (NDI) and visual analog scale for pain for both post-needling soreness (PNS) and neck pain intensity (NPI). Pressure pain threshold (PPT) and cervical range of motion (CROM) were the secondary outcomes.ResultsWe detected between-group differences in NPI and PNS in favor of the DN+PENS group immediately after treatment. No between-group differences in NDI were observed.ConclusionPENS application after dry needling treatment is more effective than dry needling alone for decreasing soreness in the short term and improving neck pain intensity immediately in patients with myofascial chronic neck pain.

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