Percutaneous tendon dry needling and thrust manipulation as an adjunct to multimodal physical therapy in patients with lateral elbow tendinopathy: A multicenter randomized clinical trial

Objective: The purpose of this study was to assess the effects of adding electrical dry needling and thrust manipulation into a multimodal program of exercise, mobilization, and ultrasound in patients with lateral elbow tendinopathy. Design: Randomized, single-blinded, multicenter, parallel-group trial. Setting: Thirteen outpatient physical therapy clinics in nine different US states. Participants: One hundred and forty-three participants (n=143) with lateral elbow tendinopathy were randomized. Intervention: Cervical spine manipulation, extremity manipulation, and percutaneous tendon electrical dry needling plus multimodal physical therapy (n =73) or multimodal physical therapy (n =70) alone. Main measures: The primary outcome was elbow pain intensity and disability as measured by the Patient-Rated Tennis Elbow Evaluation at baseline, 1 week, 4 weeks, and 3 months. Secondary outcomes included the Numeric Pain Rating Scale, Tennis Elbow Functional Scale, Global Rating of Change, and medication intake. Results: The 2 × 4 analysis of covariance demonstrated that individuals with lateral elbow tendinopathy receiving electrical dry needling and thrust manipulation plus multimodal physical therapy experienced significantly greater improvements in disability (Patient-Rated Tennis Elbow Evaluation: F=19.675; P < 0.001), elbow pain intensity (Numeric Pain Rating Scale: F=22.769; P < 0.001), and function (Tennis Elbow Function Scale: F =13.269; P < 0.001) than those receiving multimodal physical therapy alone at 3 months. The between-group effect size was large for pain and disability (Patient-Rated Tennis Elbow Evaluation: standardized mean difference=1.13; 95% confidence interval: 0.78, 1.48) in favor of the electrical dry needling and thrust manipulation group. Conclusions: The inclusion of percutaneous tendon electrical dry needling and thrust manipulation into a multimodal program of exercise, mobilization and ultrasound was more effective than multimodal physical therapy alone in individuals with lateral elbow tendinopathy. Trial Registration: www.clinicaltrials.gov NCT03167710 May 30, 2017.