Background: Lateral epicondylitis (LE) is a painful condition typically caused by excessive use of tendons, resulting in tendinopathy, inflammation, pain, and sensitivity changes in the lateral elbow. Iontophoresis is a noninvasive method of systemic and local drug delivery by means of a current. The study aimed to evaluate the effects of iontophoresis in patients with LE.
Methods: We performed a randomized, double-blind clinical trial. Twenty-four patients with LE, randomized into an iontophoresis group and a galvanic current group. The iontophoresis group received a solution of dexamethasone (4 mg/mL) and gel lidocaine-applied on the negative electrode by means of a continuous current at 5 mA for 15 minutes-and the positive electrode received a base gel solution. Patients in the galvanic current group received the same protocol but using a base gel solution on both electrodes.
Results: Both groups showed a significant improvement in pain on exertion and rest; increased handgrip strength in elbow extension and flexion; and improved function, as evaluated by the Patient-Rated Tennis Elbow Evaluation scale (P < .05). Iontophoresis showed superior results compared with galvanic current in pain on exertion and rest and in the function of individuals with tennis elbow.
Conclusion: Iontophoresis proved to be an effective technique in reducing pain and improving strength and function in individuals with LE (tennis elbow).
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| http://dx.doi.org/10.1016/j.jse.2019.05.020 | DOI Listing |
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