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Emergency cervical-spine immobilization.

D R Chandler1, C Nemejc, R H Adkins

  • 1Regional Spinal Cord Injury Care System of Southern California, Rancho Los Amigos Medical Center, Downey.

Annals of Emergency Medicine
|October 1, 1992
PubMed
Summary
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Cervical extrication collars and Ammerman halo orthoses significantly reduce cervical spine motion. Combining these devices with a spine board offers superior immobilization for patients.

Area of Science:

  • Orthopedic biomechanics
  • Trauma care research
  • Medical device efficacy

Background:

  • Cervical spine immobilization is critical in trauma management.
  • Various devices exist, but their comparative effectiveness requires rigorous evaluation.

Purpose of the Study:

  • To assess the effectiveness of rigid cervical extrication collars and Ammerman halo orthoses for cervical spine immobilization.
  • To compare immobilization with and without spine boards.

Main Methods:

  • A mixed-model multivariate design was employed.
  • Twenty healthy male participants underwent motion analysis.
  • Cervical motion was measured with devices alone and with spine boards using photographic and radiologic methods.

Main Results:

Related Experiment Videos

  • Both collar and halo orthosis significantly reduced cervical motion in all planes (P < .001).
  • The Ammerman halo orthosis provided greater immobilization than the collar alone (P < .001).
  • Spine boards further restricted motion, with the halo orthosis and spine board combination yielding the most immobilization.

Conclusions:

  • Rigid cervical collars and spine boards enhance immobilization compared to collars alone.
  • Ammerman halo orthoses offer superior cervical spine immobilization, especially when used with a spine board.