Acupuncture is an alternative medicine approach to treat back and neck pain

With the lack of a consistant and effective treatment approach, more and more patients are turning to alternative medicine to treat back pain.

Complementary and alternative medicine approaches to treat back pain include yoga, meditation, chiropractic, and deep breathing. And, according to the medical literature, these therapies have been shown to be safe and, anecdotally, effective.

One alternative medicine approach that has come under some scrutiny as of late is acupuncture. Harriet Hall, MD, writing for Science-Based Medicine, provides an in-depth review of the April 2011 paper published in Pain, in which the authors performed an exhaustive review of the acupuncture literature over the last 10 years.

In addition, Dr. Hall, with permission from the International Association for the Study of Pain, provides commentary that answers the question…

Is Acupuncture Safe and Effective?

In this issue of Pain Ernst et al. [1], systematically reviewed a decade’s worth of systematic reviews of acupuncture. They found a mix of negative, positive, and inconclusive results. There were only four conditions for which more than one systematic review reached the same conclusions, and only one of the four was positive (neck pain). They explain how inconsistencies, biases, conflicting conclusions, and recent high quality studies throw doubt on even the most positive reviews. Ernst et al.’s analysis cannot prove that acupuncture does not work (negatives are hard to prove) but their study unquestionably sheds serious doubt on the claim that it does work. Overall the evidence is inconsistent, and among those studies judged to be of the highest quality, the results tend to be negative.

Acupuncture is based on pre-scientific concepts of a vitalistic entity (qi) and of meridians and acupuncture points unknown to anatomists. More scientific explanations have been offered as to how it might work, including a counterirritant effect or the gate control theory of pain. There is evidence that acupuncture can stimulate endogenous endorphin production, but there is evidence that placebo pills can do that as well. Importantly, when a treatment is truly effective, studies tend to produce more convincing results as time passes and the weight of evidence accumulates. When a treatment is extensively studied for decades and the evidence continues to be inconsistent, it becomes more and more likely that the treatment is not truly effective. This appears to be the case for acupuncture. In fact, taken as a whole, the published (and scientifically rigorous) evidence leads to the conclusion that acupuncture is no more effective than placebo.

Acupuncture research is inherently riddled with pitfalls. What constitutes an adequate control? People can usually tell whether or not you are sticking needles in them. Various controls have been devised, such as comparing ‘‘true’’ acupuncture points to ‘‘false’’ ones. The best control so far is an ingenious retractable needle similar to a stage dagger, where the needle just touches the skin and retracts into a sheath. Unfortunately, there is no way to blind the practitioner, so double blind studies are impossible.

The practice of acupuncture is also not sufficiently standardized, which makes it difficult, if not impossible to pin down reliably for objective study: there are various schools of acupuncture with different acupoints, and studies of acupuncture have included ‘‘electroacupuncture’’ (with or without needles), ear acupuncture, cupping, moxibustion, and other loosely related procedures. In their book, The Biology of Acupuncture, Ulett and Han [3] showed that transcutaneous electrical stimulation at a single arbitrary point on the wrist was just as effective as piercing the skin at traditional acupuncture points.

In more than one recent study, researchers have chosen not to use a sham acupuncture control group. Their reasoning? Since sham acupuncture has been shown to work as well as real acupuncture, then sham acupuncture must be an effective treatment too! Imagine applying this reasoning to a drug trial: if the drug and placebo got the same results, would you decide that the drug worked and that the placebo was just as therapeutic as the drug?

It does not make any difference where you put the needles or whether you use needles at all. Touching the skin with toothpicks works just as well. The crucial factor seems to be whether patients believe they are getting true acupuncture. It is becoming increasingly clear that the surrounding ritual, the beliefs of patient and practitioner, and the nonspecific effects of treatment are likely responsible for any reported benefits.

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For additional insight, over 250 reader comments were posted following Dr. Hall’s article and are worth reading.

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