Using acupuncture to treat knee pain–no evidence

hellraiser-acupunctureLet’s start right from the beginning–there is no evidence that acupuncture has any significant clinical benefit for any condition. And because there is a small, but significant, risk associated with the acupuncture, the risk to benefit ratio is huge (if not infinity, since there is no benefit). There is simply no reason to accept, even a small risk, if there is no benefit to a procedure.

Just in case you don’t accept my words about acupuncture, Steven Novella, MD, of the Science Based Medicine blog, clarifies why acupuncture does not work:

Clinical research can never prove that an intervention has an effect size of zero. Rather, clinical research assumes the null hypothesis, that the treatment does not work, and the burden of proof lies with demonstrating adequate evidence to reject the null hypothesis. So, when being technical, researchers will conclude that a negative study “fails to reject the null hypothesis.”

Further, negative studies do not demonstrate an effect size of zero, but rather that any possible effect is likely to be smaller than the power of existing research to detect. The greater the number and power of such studies, however, the closer this remaining possible effect size gets to zero. At some point the remaining possible effect becomes clinically insignificant.

In other words, clinical research may not be able to detect the difference between zero effect and a tiny effect, but at some point it becomes irrelevant. Continue reading “Using acupuncture to treat knee pain–no evidence”