Effect of Auriculotherapy on Musculoskeletal Pain: A Systematic Review and Meta-Analysis

PURPOSE: The aim of this study was to evaluate the effect of auriculotherapy on musculoskeletal pain in adults. METHODS: A total of 885 studies were retrieved from nine databases (PubMed, Scopus, CINAHL, Web of Science, Ovid Medline, Cochrane Library, RISS, KMbase, and KISS). Sixteen studies were selected for meta-analysis, which satisfied the inclusion criteria and the evaluation of risk of bias. Demographic data, auriculotherapy types, intervention characteristics, auricular points, and outcomes related to pain (subjective pain scale, and amount of analgesic) were extracted from all included studies. The effect size of auriculotherapy was analyzed through comprehensive meta analysis 3.0, and the presence of publication bias was analyzed through a funnel plot and Egger's regression. RESULTS: The results of the meta-analysis (n = 16) revealed that the auriculotherapy was significantly superior to the control group on present pain in adults (Hedges' g = -0.35, 95% Confidence Interval [CI] = -0.55~-0.15). According to the results of subgroup analysis, the effect size of auricular acupuncture therapy (Hedges' g = 0.45, 95% CI = -0.75~-0.15) was higher than the auricular acupuncture (Hedges' g = 0.27, 95% CI = -0.53~0.00): the longer the intervention period, the greater the effect size. CONCLUSION: In this study, auriculotherapy demonstrates a significant reduction in musculoskeletal pain in adults. Therefore, it is necessary to refine the curriculum to include auriculotherapy as a nursing intervention to relieve musculoskeletal pain in adults and encourage its use in clinical settings.