You Asked: Are Chiropractors Legitimate?[if lt IE 9]> <![endif]
In the world of medicine, chiropractic, which seeks to treat musculoskeletal injuries, seems to hover in that gray area between standard health care—the type you’d receive at a hospital or from a physician—and acupuncturists, massage therapists and other “alternative” practitioners.
“Chiropractic was the original holistic medicine in that it focused on treating the whole person, not just the body part that hurt,” says Michael Schneider, an associate professor of health sciences at the University of Pittsburgh. Along with a doctorate in chiropractic, Schneider also has a PhD in rehabilitation science. His research has shown that “cervical and lumbar manipulation”—the back and neck adjustments most people associate with a visit to a chiropractor—can be an effective treatment for low back pain. Especially when combined with standard medical care, chiropractic manipulation often leads to better patient outcomes, other studies suggest.
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While the strongest evidence in support of chiropractic involves the treatment of back pain, Schneider says there’s also evidence for neck pain and some types of non-migraine headaches. Still, his profession is not without controversy, he says. “The controversy comes in when chiropractors make claims about treating non-musculoskeletal conditions”—claims he says have little to no basis in science.
This “failure to present a unified front” is the biggest problem facing chiropractors today, says Dr. Scott Haldeman, a neurologist and chiropractor who teaches at both UCLA and UC Irvine. “You could walk into a chiropractor’s office and find someone who is a pure back-and-neck-pain guy—a guy who has embraced the scientific research—or someone who says he can cure all things and provide general wellness,” Haldeman explains.
“Like any other type of doctor, some chiropractors are good, some are just OK and some are bad,” says Dr. Simon Dagenais, a chiropractor and clinical epidemiologist. “It takes just a few rotten apples to spoil the bunch.”
Another thorny issue for chiropractors of all stripes is the public perception that spinal manipulation can result in injury or, more ominously, stroke or torn arteries.
“The stroke question is basically resolved,” Haldeman says, citing research that shows the risk of suffering a stroke following a chiropractic visit is extremely low, on par with the risk associated with visiting a physician. “Neck pain can be a sign of a stroke in process,” he says, “so people may go see a doctor or chiropractor about that pain and then associate the subsequent stroke with their visit.” When it comes to artery tears, Haldeman’s own research turned up only 23 such cases among more then 134 million chiropractic manipulations.
More of an open question is whether less-serious injuries can result from a chiropractor’s touch. One study of neck pain patients found 30% had some kind of “adverse” reaction following chiropractic treatment. “In most cases, that adverse event was increased pain or stiffness, and it resolved itself quickly,” says Dr. Eric Hurwitz, first author of the study and graduate chair of epidemiology at the University of Hawai’i.
Hurwitz says more severe reactions were “very rare,” and most patients didn’t experience any adverse event at all. “But we can’t predict who will or won’t experience an adverse event,” he adds.
“There’s some risk involved,” Haldeman agrees. “But there’s also risk from surgery or from taking medications.” Compared to opioids—a class of painkillers commonly prescribed for back and neck pain, and one also linked to dependence and death due to overdose—the potential for soreness and ache seems minor, he adds.
Schneider agrees and points out that malpractice and liability insurance premiums for chiropractors are much lower than for physicians or surgeons. “Insurance actuaries aren’t dumb,” he says. “They know that based on the malpractice data, chiropractic is very safe.”
But the biggest unsolved mystery about chiropractic treatment is exactly how spinal manipulation reduces back or neck pain. “Increased mobility of the spinal vertebrae and muscle relaxation probably has a lot to do with it,” Haldeman says. “But the truth is the mechanism is not well understood, just as back and neck pain are not well understood.”
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“Chiropractors tend to have very high patient satisfaction rates,” Schneider says. “And from a public health perspective, we’d see a lot fewer unnecessary tests and hospitalizations and opioid prescriptions if people visited chiropractors for their back and neck pain.”