“Chiropractic is a freak offshoot from osteopathy. Disease, say the chiropractors, is due to pressure on the spinal nerves; ergo it can be cured by “adjusting” the spinal column. It is the sheerest quackery, and those who profess to teach it make their appeal to the cupidity of the ignorant. Its practice is in no sense a profession but a trade – and a trade that is potent for great harm. It is carried on almost exclusively by those of no education, ignorant of anatomy, ignorant even of the fundamental sciences on which the treatment of disease depends.”
Journal of the American Medical Association, 1913

Chiropractic is considered to be one of the most accepted forms of quackery practiced in alternative medicine and, unfortunately, ACTUAL medicine as well. It is responsible for major injuries like arterial tearing/strokes, major nerve damage, fractures, infections due to poor sanitation practices, haphazard and poor regulatory practices, poor or incorrect medical advice, and every year is associated with preventable death and serious bodily harm.

The history of chiropractic began in 1895 when Daniel David Palmer of Iowa performed an apparent neck adjustment on a partially deaf janitor, Harvey Lillard. Mr. Palmer claimed that this subtle neck adjustment completely restored Mr. Lillard’s hearing; although this makes absolutely zero anatomical sense as the nerves for your hearing do not intersect your neck. This experience led Palmer to open a school of chiropractic two years later. Rev. Samel Weed later coined the word “chiropractic” from Greek roots.

Similar to the idea of chi practice where they believe in energy flow disruptions causing the root of all illness, “vertebral subluxation” is the misalignment of the spinal column which leads to body dysfunction, disease, and interferes with the bodies “innate intelligence”. Granted many chiropractic care providers choose to ignore the origins and bases for chiropractic, the problem is there are major inconsistencies with care provided by Chiropractic clinicians.

Chiropractors are not medical doctors or medical professionals and have a very short schooling period that varies from school to school depending on that particular institution’s ideology and curricula. A United States Department of Education staff analysis found that the Council on Chiropractic Education (CCE) was not in compliance with 44 of the criteria for accrediting agencies outlined in the Code of Federal Regulations. This included failure to comply with regulations governing conflicts of interest, record keeping, processing of student complaints and the adequacy of its site review of accredited chiropractic colleges. The schooling they do receive has shown to be suspect and contrary to accepted scientific facts and evidence. A survey of a 1999–2000 cross-section of students of CMCC reported that fourth-year students opposed vaccination more strongly than first-year’s, with 29.4% of fourth-year’s opposing vaccination. So when it comes to being a “healthcare provider” this is extremely contradictory and dangerous.

Chiropractic Care and Placebo have historically scored about the exact same but there has been an egregious lack in clinical trials and studies. The research on chiropractic has been far from rigorous unsurprisingly. One of the problems is that studies of spinal manipulation therapy (SMT) can’t be double blinded, and it is very difficult to even do single blinding. So most studies resort to non-manipulation control groups like “usual care” or “wait list” or “pain medication.” Those studies are practically guaranteed to lead to false positive conclusions: they make SMT look more effective than it would look if you could provide a control that patients couldn’t distinguish from real SMT. This has been one of the ways Chiropractic has been able to get away with their claims consistently without having to provide burden of proof and efficacy. Chiropractic usually goes hand-in-hand with naturopathy, homeopathy, acupuncture, herbalism, holistic care, and other unfounded alternative medicine practices.
Therefore Chiropractic is not a recognized form of Medical Science and is not based upon empirical evidence but on anecdotal testimony.

One of the best ways to see this is by using what is known as Hill’s criteria. Sir Austin Bradford Hill established contemporary epidemiology as strength (strength of association), consistency, specificity, temporality (temporal sequence), dose response, experi-
mental evidence, biological plausibility, coherence, and
analogy. They form the fundamental prerequisites and assessment criteria of the cause-effect relationship. In reguards to Chiropratic, Hill’s criteria are the most commonly used epidemiologic model for suggesting a causal link for any diagnostic or treatment approach. There is a significant lack of evidence in the literature to fulfill Hill’s criteria of causation with regards to the chiropractic subluxation. No supportive evidence is found for the chiropractic subluxation being associated with any disease process or of creating suboptimal health conditions requiring intervention. Regardless of popular appeal this leaves the subluxation construct in the realm of unsupported speculation. This lack of supportive evidence suggests the subluxation construct has no valid clinical applicability.

Sources:

http://www.quackwatch.org/01QuackeryRelatedTopics/chirostroke.html

Coroner’s Jury Concludes That Neck Manipulation Killed Canadian Woman.

Did chiropractic neck manipulation kill Katie May?

http://www.chirobase.org/15News/lewis.html

http://www.sciencedirect.com/science/article/pii/S0264410X08009511?via%3Dihub

Dept. of Education to Council on Chiropractic Education: “Straighten Up!”

An epidemiological examination of the subluxation construct using Hill’s criteria of causation, 2009

https://chiromt.biomedcentral.com/track/pdf/10.1186/1746-1340-17-13?site=chiromt.biomedcentral.com

A Credible Placebo Control for Chiropractic Research