Acupuncture for Chronic Pain: Update of an Individual Patient Data Meta-Analysis
Tao Point summary. Across randomized trials of chronic musculoskeletal pain, osteoarthritis, chronic headache and shoulder pain, acupuncture performed better than sham acupuncture and no-acupuncture controls. Differences were substantially larger against no-acupuncture controls than against sham.
Limitations / interpretation. The results support a clinical effect in the studied chronic-pain populations, but do not establish traditional meridian or Qi theory as the biological mechanism.