Dry needling adds no benefit to the treatment of neck pain: A sham- controlled randomized clinical trial with 1-year follow-up

Abstract

OBJECTIVE: To examine the short- and longterm effectiveness of dry needling on disability, pain, and patient-perceived improvements in patients with mechanical neck pain when added to a multimodal treatment program that includes manual therapy and exercise. U DESIGN: Randomized controlled trial. U METHODS: Seventy-seven adults (mean ± SD age, 46.68 ± 14.18 years; 79% female) who were referred to physical therapy with acute, subacute, or chronic mechanical neck pain were randomly allocated to receive 7 multimodal treatment sessions over 4 weeks of (1) dry needling, manual therapy, and exercise (needling group); or (2) sham dry needling, manual therapy, and exercise (sham needling group). The primary outcome of disability (Neck Disability Index score) and secondary outcomes of pain (current and 24-hour average) and patient-perceived improvement were assessed at baseline and follow-ups of 4 weeks, 6 months, and 1 year by blinded assessors. Between-group differences were analyzed with a 2-way, repeated- measures analysis of variance. Global rating of change was analyzed with a Mann-Whitney U test. U RESULTS: There were no group-by-time interactions for disability (Neck Disability Index: F2.37,177.47 = 0.42, P = .69), current pain (visual analog scale: F2.84,213.16 = 1.04, P = .37), or average pain over 24 hours (F2.64,198.02 = 0.01, P = .10). There were no between- group differences for global rating of change at any time point (P=.65). Both groups improved over time for all variables (Neck Disability Index: F2.37,177.47 = 124.70, P