• Am J Phys Med Rehabil · Jul 2013

    Randomized Controlled Trial Comparative Study

    Hypertonic dextrose and morrhuate sodium injections (prolotherapy) for lateral epicondylosis (tennis elbow): results of a single-blind, pilot-level, randomized controlled trial.

    • David Rabago, Ken S Lee, Michael Ryan, Amrish O Chourasia, Mary E Sesto, Aleksandra Zgierska, Rick Kijowski, Jessica Grettie, John Wilson, and Daniel Miller.
    • Department of Family Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53715, USA.
    • Am J Phys Med Rehabil. 2013 Jul 1; 92 (7): 587-96.

    ObjectiveChronic lateral epicondylosis is common, debilitating, and often refractory. Prolotherapy (PrT) is an injection therapy for tendinopathy. The efficacy of two PrT solutions for chronic lateral epicondylosis was evaluated.DesignThis study is a three-arm randomized controlled trial. Twenty-six adults (32 elbows) with chronic lateral epicondylosis for 3 mos or longer were randomized to ultrasound-guided PrT with dextrose solution, ultrasound-guided PrT with dextrose-morrhuate sodium solution, or watchful waiting ("wait and see"). The primary outcome was the Patient-Rated Tennis Elbow Evaluation (100 points) at 4, 8, and 16 wks (all groups) and at 32 wks (PrT groups). The secondary outcomes included pain-free grip strength and magnetic resonance imaging severity score.ResultsThe participants receiving PrT with dextrose and PrT with dextrose-morrhuate reported improved Patient-Rated Tennis Elbow Evaluation composite and subscale scores at 4, 8, and/or 16 wks compared with those in the wait-and-see group (P < 0.05). At 16 wks, compared with baseline, the PrT with dextrose and PrT with dextrose-morrhuate groups reported improved composite Patient-Rated Tennis Elbow Evaluation scores by a mean (SE) of 18.7 (9.6; 41.1%) and 17.5 (11.6; 53.5%) points, respectively. The grip strength of the participants receiving PrT with dextrose exceeded that of the PrT with dextrose-morrhuate and the wait and see at 8 and 16 wks (P < 0.05). There were no differences in magnetic resonance imaging scores. Satisfaction was high; there were no adverse events.ConclusionsPrT resulted in safe, significant improvement of elbow pain and function compared with baseline status and follow-up data and the wait-and-see control group. This pilot study suggests the need for a definitive trial.

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