I was talking to a friend today and she brought to mind an exchange between Murray Katz, MD and me from the McGill University, Faculty of Medicine, Continuing Medical Education discussion board. I thought that I would post some of it here.
Dr. Katz had presented an anti-chiropractic diatribe at McGill which is "so full of fabrications, extrapolation and cherry-picked use of the literature that his presentation really should be prefaced with a warning that this is fiction."
I was asked a question on the discussion board after posting the comment above (and more) about "high neck manipulation." I cited the recent literature on the topic
Cassidy JD, Boyle E, Côté P, He Y, Hogg-Johnson S, Silver FL, et al . Risk of vertebrobasilar stroke and chiropractic care: results of a population-based case-control and case-crossover study. Spine. 2008;33(4 Suppl):S176-83.
This is rather compelling evidence that the association seen in previous studies between cervical manipulation and vertebrobasilar stroke was actually an association between vertebrobasilar stroke and seeking the care of a health care professional. We know this from Cassidy et al because the association between stroke and seeing a chiropractor was identical to the association between stroke and seeing a primary care physician (PCP) AKA a medical doctor. Thus manipulation was not associated with stroke just seeking care was.
Then Katz joined in the discussion
Here is my reply
Re: Re: High Neck manipulation Posted by Stephen on Aug 02, 2008If anyone is interested in the whole exchange please go to McGill's web site
Again if anyone is interested in the best evidence on chiropractic stroke read the study by Cassidy et al