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Efficacy of Extracorporeal Shock Wave Therapy for Lateral Epicondylitis: A Systematic Review and Meta-Analysis
Gaowen Yao1, Jing Chen2, Yanji Duan1
1The Department of Orthopedic Surgery, The First People's Hospital of Neijiang, Neijiang, 641000 Sichuan Province, China.
Background:
Lateral epicondylitis (LE) is a common elbow problem. Extracorporeal shock wave therapy (ESWT) was widely used in the treatment of LE and has been shown to relieve the pain and functional impairment (loss of grip strength) caused by tennis elbow. However, the evidence with regard to whether ESWT has better clinical efficacy over other method is not clear. The aim of the study was to compare the effectiveness of ESWT with other techniques in the treatment of LE.
Methods:
Literature searches of PubMed, OVID, Embase, Cochrane Library, and Web of Science were searched up to 30th June, 2019. Only RCTs comparing ESWT with other methods for LE were included. Data collection and extraction, quality assessment, and data analyses were performed according to the Cochrane standards.
Results:
A total of 13 articles with 1035 patients were included. Of which, 501 underwent ESWT and 534 underwent other methods. The result of meta-analysis showed that pooled VAS (P = 0.0004) and grip strength (P < 0.00001) were better in the ESWT group.
Conclusion:
Based on the existing clinical evidence, extracorporeal shock wave therapy can effectively relieve the pain and functional impairment (loss of grip strength) caused by tennis elbow, with better overall safety than several other methods. However, owing to the limited quality and quantity of the included studies, more high-quality RCTs are needed to support the trend towards better functional outcomes with ESWT.
