10/03/2026
More evidence for safety of chiropractic…
Cervical artery dissection (CeAD) and cervical manipulation is an important topic, and one that deserves more nuance than “safe” versus “dangerous.”
A new multidisciplinary study examined 862,984 adults with a new episode of neck pain or headache, comparing those receiving chiropractor-administered cervical manipulation with matched patients receiving outpatient medical care with an ibuprofen prescription.
Within 30 days, 31 patients in the manipulation group and 58 in the ibuprofen group were diagnosed with CeAD. Researchers found no evidence of increased CeAD risk following cervical manipulation compared with the medical-care group.
But this does not mean the risk is zero or prove that manipulation can never cause a dissection. This was an observational study, and the authors acknowledge limitations including residual confounding and reliance on health-record and claims data.
An especially important piece of this conversation:
Neck pain and headache can themselves be early symptoms of an evolving dissection.
A patient may therefore seek care because a dissection is already developing. If CeAD is diagnosed after treatment, timing alone cannot tell us whether treatment caused it or whether it was already underway, an issue known as reverse causation (or protopathic bias).
And that is exactly why these findings should not make us less vigilant.
A careful history and appropriate examination still matter. Acute, sudden, unusual or unfamiliar symptoms, relevant recent trauma or infection, neurological findings, and other concerning features should increase our suspicion for a vascular cause and change our approach accordingly.
The takeaway shouldn’t be “there is no risk.”
It’s that in this very large matched cohort, cervical manipulation was not associated with increased CeAD risk compared with another group seeking care for the same complaints, while CeAD remains a rare but potentially serious condition clinicians need to recognize.
Both can be true.
Good evidence should refine our clinical reasoning, not replace it.