• Jennifer Moriatis Wolf, Kagan Ozer, Frank Scott, Michael J V Gordon, and Allison E Williams.
• Department of Orthopaedics, University of Colorado-Denver, Denver, CO, USA. jmwolf@uchc.edu
• J Hand Surg Am. 2011 Aug 1; 36 (8): 1269-72.

PurposeWe compared saline, corticosteroid, and autologous blood injections for lateral epicondylitis in a prospective, blinded, randomized, controlled trial. The null hypothesis was that patient-rated outcomes after autologous blood injection would not be superior to corticosteroid and saline injections.MethodsPatients with clinically diagnosed lateral epicondylitis of less than 6 months' duration were randomized into 1 of 3 groups to receive a 3-mL injection of saline and lidocaine, corticosteroid and lidocaine, or autologous blood and lidocaine. Of 34 subjects who enrolled, 28 completed follow-up. A total of 10 were randomized to the saline group, 9 to the autologous blood group, and 9 to the steroid group. Every participant had 3 mL blood drawn, and the injection syringe was foil-covered to prevent the subject from knowing the contents. The primary outcome measure was the Disabilities of the Arm, Shoulder, and Hand (DASH) score. Patients completed a pain visual analog scale, DASH, and the Patient-Rated Forearm Evaluation before injection and at 2 weeks, 2 months, and 6 months after injection. We performed statistical analysis using repeated measures of analyses of variance.ResultsThere were no significant differences in DASH scores among the 3 groups at 2- and 6-month follow-up points, with the mean scores for saline at 20 and 10, respectively, compared with 28 and 20 for autologous blood and 28 and 13 for steroid injections. Secondary measures showed similar findings, with outcomes scores showing improvement in all 3 groups.ConclusionsIn this prospective, randomized, controlled trial, autologous blood, corticosteroid, and saline injection provide no advantage over placebo saline injections in the treatment of lateral epicondylitis. Patients within each injection group demonstrated improved outcome scores over a 6-month period.Copyright © 2011 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.

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