A German placebo-controlled single-blind trial into the treatment of tennis elbow compared a single-needle traditionally selected treatment with a placebo non-penetrative treatment. Pain relief occurred in 55.8% of the treatment group and 15% in the control group. 79.2% of the treatment group reported pain relief of at least 50% after only one treatment.

Molsberger, A. et. al The analgesic effect of acupuncture in chronic tennis elbow pain, BR. J. Rheumatol. [United Kingdom], 1994, 33/12 [1162-1165].