It is our 'raison d'etre' as a profession. And that presents a problem because after more than 100 years of existence, chiropractors have been unable to prove the existence of the subluxation . In fact, chiropractors admit among themselves that they can't define the very thing that lies at the core of their profession. Jarvis says some chiropractors have conducted and published some research but not on this fundamental issue. Some of it is published in reputable journals, but you don't find anything that has identified the existence of subluxations.
Chiropractors are the only profession who adhere to the subluxation theory.
Other manual therapists are clear in their dismissal of the chiropractic subluxation. Orthopractic practitioners do not claim to treat nor do they claim to alter the course, in any way, of any of these conditions. So, chiropractors stand alone and after more than a century, the central theory of chiropractic remains just that, a theory. Even reliably identifying subluxations has been and continues to be a serious problem for the chiropractic profession. In fact, chiropractors themselves admit they can't do it.