The effectiveness of laser acupuncture for treatment of musculoskeletal pain: A meta-analysis of randomized controlled studies

Yu Chiang Hung, Pao Yen Lin, Hsienhsueh Elley Chiu, Po Yu Huang, Wen Long Hu*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

6 Scopus citations


Objective: To evaluate the treatment effectiveness of laser acupuncture (LA) in patients with musculoskeletal pain. Methods: Major electronic databases, including Medline, PubMed, Embase, Cochrane Library, CINAHL, and Scopus were searched to identify double-blind, randomized controlled trials of LA in musculoskeletal disorders. The primary outcome was the treatment efficacy for pain. The secondary outcomes included the comparison of disability, functional impairment, and dropout rate between LA and sham treatment, as well as the effect of sham treatment for pain. The results from included studies were synthesized with the random effects model. Results: In total, 20 articles comprising 568 patients receiving LA and 534 patients receiving sham treatment were included in the current study. Our analysis showed LA significantly reduced pain (g=0.88, 95% confidence interval [CI]=0.35 to 1.42, p=0.001), disability (g=0.68, 95% CI=0.29 to 1.08, p<0.001), and functional impairment (g=0.67, 95% CI=0.32 to 1.03, p<0.001). Through meta-regression analysis, we found these effects were not moderated by mean age, the percentage of females, or treatment duration. Additionally, there was no significant difference between the two groups in dropout rate (risk ratio=0.73, p=0.08), and the sham treatment significantly reduced only pain intensity (g=0.54, 95% CI=0.32 to 0.77, p<0.001). Conclusion: Our findings supported that LA significantly reduced pain, disability, and functional impairment in patients with musculoskeletal disorders. Further researches are required to determine the optimal therapeutic parameters and the suitable patients for receiving LA. Protocol Registration: CRD42020190919.

Original languageEnglish
Pages (from-to)1707-1719
Number of pages13
JournalJournal of Pain Research
StatePublished - 2021

Bibliographical note

Publisher Copyright:
© 2021 Hung et al.


  • Laser acupuncture
  • Meta-analysis
  • Pain
  • Randomized controlled trial
  • Traditional Chinese medicine


Dive into the research topics of 'The effectiveness of laser acupuncture for treatment of musculoskeletal pain: A meta-analysis of randomized controlled studies'. Together they form a unique fingerprint.

Cite this