• DOI:10.1097/BRS.0b013e3181557bb1
• Corpus ID: 42353750

Safety of Chiropractic Manipulation of the Cervical Spine: A Prospective National Survey

@article{Thiel2007SafetyOC,
  title={Safety of Chiropractic Manipulation of the Cervical Spine: A Prospective National Survey},
  author={Haymo W Thiel and Jennifer E. Bolton and Sharon Docherty and Jane Portlock},
  journal={Spine},
  year={2007},
  volume={32},
  pages={2375-2378}
}

• H. Thiel, J. Bolton, +1 author J. Portlock
• Published 1 October 2007
• Medicine
• Spine

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 ≈1 per 10,000 treatment consultations immediately after cervical spine manipulation, ≈2 per 10,000 treatment consultations up to 7 days after treatment and ≈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 ≈16 per 1000 treatment consultations. Up to 7 days after treatment, these risks were headache in, at worse ≈4 per 100, numbness/tingling in upper limbs in, at worse ≈15 per 1000 and fainting/dizziness/light-headedness in, at worse ≈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.