Blinding Strategies in Dry Needling Trials: Systematic Review and Meta-Analysis

Physical Therapy
Felicity A BraithwaiteMaureen P McEvoy

Abstract

Blinding of participants and therapists in trials of physical interventions is a significant and ongoing challenge. There is no widely accepted sham protocol for dry needling. The purpose of this review was to summarize the effectiveness and limitations of blinding strategies and types of shams that have been used in dry needling trials. Twelve databases were searched from inception to February 2016. Trials that compared active dry needling with a sham that simulated dry needling were included. The main domains of data extraction were participant/therapist details, intervention details, blinding strategies, blinding assessment outcomes, and key conclusions of authors. Reported blinding strategies and sham types were synthesized descriptively, with available blinding effectiveness data synthesized using a chance-corrected measurement of blinding (blinding index). The search identified 4894 individual publications with 27 trials eligible for inclusion. In 22 trials, risk of methodological bias was high or unclear. Across trials, blinding strategies and sham types were heterogeneous. Notably, no trials attempted therapist blinding. Sham protocols have focused on participant blinding using strategies related to group standardizatio...Continue Reading

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Citations

Mar 11, 2020·Clinical Trials : Journal of the Society for Clinical Trials·Felicity A BraithwaiteMaureen P McEvoy
Dec 19, 2020·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·César Fernández-de-Las-PeñasMarcos J Navarro-Santana
Jan 23, 2021·Clinical Trials : Journal of the Society for Clinical Trials·Brian FreedJongbae J Park
Feb 14, 2021·Pain Medicine : the Official Journal of the American Academy of Pain Medicine·Cristina Martín-CorralesDaniel Pecos-Martín
Feb 27, 2021·The Journal of Pain : Official Journal of the American Pain Society·Jorge Sánchez-InfanteJavier Abián-Vicén
Jul 3, 2021·International Journal of Environmental Research and Public Health·Irene Lázaro-NavasTomás Gallego-Izquierdo
Sep 22, 2020·Complementary Therapies in Medicine·Rafael Valencia-ChuliánCarlos Luque-Moreno

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