期刊
JOURNAL OF HAND SURGERY-AMERICAN VOLUME
卷 37A, 期 1, 页码 104-109出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.jhsa.2011.10.005
关键词
Corticosteroids; iontophoresis; lateral epicondylitis; randomized study
Purpose We designed a prospective, randomized study to evaluate the effects of iontophoresis delivery of dexamethasone versus corticosteroid injection therapy on patient outcomes. Methods We randomized 82 patients to 10 mg dexamethasone via iontophoresis using a self-contained patch with a 24-hour battery; 10 mg dexamethasone injection; or 10 mg triamcinolone injection. All patients received the same hand therapy protocol. Primary outcomes tracked were change in grip strength (flexion vs extension), pain, and function scores on a validated questionnaire. The secondary outcome was return-to-work status. Patients were evaluated at baseline, completion of physical therapy, and 6-month follow-up. Results The iontophoresis patients had statistically significant improvement in grip strength at the conclusion of hand therapy compared with baseline. They were also more likely to get back to work without restriction. By 6-month follow-up, all groups had equivalent results for all measured outcomes. Conclusions Dexamethasone via iontophoresis produced short-term benefits because for this group grip strength and unrestricted return to work were significantly better. This study suggests that this iontophoresis technique for delivery of corticosteroid may be considered a treatment option for patients with lateral epicondylitis. (J Hand Surg 2012;37A:104-109. Copyright (C) 2012 by the American Society for Surgery of the Hand. All rights reserved.)
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