An international magazine for study of the spine has published an article stating the true safety of chiropractic adjustments on the neck. To further this, they implemented the most “aggressive” form of adjusting. The public may still be unaware just how gentle chiropractic adjustments are.
Here is a summary:
Safety of Chiropractic Manipulation of the Cervical Spine: A Prospective National Survey.
Health Services Research
Spine. 32(21):2375-2378, October 1, 2007.
Thiel, Haymo W. DC, PhD *; Bolton, Jennifer E. PhD *; Docherty, Sharon PhD *; Portlock, Jane C. PhD +
Abstract:
Study Design. Prospective national survey.
Objective.
To estimate the risk of serious and relatively minor adverse events
following chiropractic manipulation of the cervical spine by a sample
of U.K. chiropractors.
Summary of Background Data. The risk of a
serious adverse event following chiropractic manipulation of the
cervical spine is largely unknown. Estimates range from 1 in 200,000 to
1 in several million cervical spine manipulations.
Methods. We
studied treatment outcomes obtained from 19,722 patients. Manipulation
was defined as the application of a high-velocity/low-amplitude or
mechanically assisted thrust to the cervical spine. Serious adverse
events, defined as “referred to hospital A&E and/or severe
onset/worsening of symptoms immediately after treatment and/or resulted
in persistent or significant disability/incapacity,” and minor adverse
events reported by patients as a worsening of presenting symptoms or
onset of new symptoms, were recorded immediately, and up to 7 days,
after treatment.
Results. Data were obtained from 28,807
treatment consultations and 50,276 cervical spine manipulations. There
were no reports of serious adverse events. This translates to an
estimated risk of a serious adverse event of, at worse [almost equal
to]1 per 10,000 treatment consultations immediately after cervical
spine manipulation, [almost equal to]2 per 10,000 treatment
consultations up to 7 days after treatment and [almost equal to]6 per
100,000 cervical spine manipulations. Minor side effects with a
possible neurologic involvement were more common. The highest risk
immediately after treatment was fainting/dizziness/light-headedness in,
at worse [almost equal to]16 per 1000 treatment consultations. Up to 7
days after treatment, these risks were headache in, at worse [almost
equal to]4 per 100, numbness/tingling in upper limbs in, at worse
[almost equal to]15 per 1000 and fainting/dizziness/light-headedness
in, at worse [almost equal to]13 per 1000 treatment consultations.
Conclusion.
Although minor side effects following cervical spine manipulation were
relatively common, the risk of a serious adverse event, immediately or
up to 7 days after treatment, was low to very low.
(C) 2007 Lippincott Williams & Wilkins, Inc.