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KMID : 0858320090120010021
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Journal of the Korean Shoulder Elbow Society
2009 Volume.12 No. 1 p.21 ~ p.26
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Dose-related Effect of Extracorporeal Shock Wave Therapy for Lateral Epicondylitis - Prospective Randomized Double Blind Comparative Study -
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Oh Joo-Han
Gong Hyun-Sik
Jo Ki-Hyun
Oh Chung-Hee
Yoon Jong-Pil
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Abstract
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Purpose: The aim of this study was to examine the dose-related effect of extracorporeal shock wave therapy (ESWT) for lateral epicondylitis.
Materials and Methods : Thirty patients with refractory lateral epicondylitis despite conservative treatment for 6 months were enrolled in this study. The patients were divided randomly into a low- and highenergy group. All patients were treated 3 times with ESWT with an interval of 1 week in a double blinded manner. The mean energy level in the low- and high-energy group was 0.12 mJ/mm2 and 0.24 mJ/mm2, respectively. The upper extremity functional scales and Mayo elbow scores were measured prospectively at the baseline, 1, 3 and 6 months after ESWT.
Results: Significant clinical improvement was observed in both groups after ESWT. The high-energy group showed better pain improvement at 6 months after ESWT (p=0.019). The effect of ESWT was dominant between 1 and 6 months after ESWT than within 1 month.
Conclusion: ESWT for lateral epicondylitis demonstrated showed good results regardless of the energy dose. However, a high-energy level was more effective in pain improvement after 6 months of treatment.
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KEYWORD
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Lateral epicondylitis, Extracorporeal shock wave therapy, Dose-related effect
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