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Comparative Study
. 2015 May;16(3):453-8.
doi: 10.5811/westjem.2015.1.21851. Epub 2015 Apr 29.

Rapid Extrication versus the Kendrick Extrication Device (KED): Comparison of Techniques Used After Motor Vehicle Collisions

Joshua Bucher  1 , Frank Dos Santos  2 , Danny Frazier  3 , Mark A Merlin  4
Affiliations
Comparative Study

Rapid Extrication versus the Kendrick Extrication Device (KED): Comparison of Techniques Used After Motor Vehicle Collisions

Joshua Bucher et al. West J Emerg Med. 2015 May.

Abstract

Introduction: The goal of this study was to compare application of the Kendrick Extrication Device (KED) versus rapid extrication (RE) by emergency medical service personnel. Our primary endpoints were movement of head, time to extrication and patient comfort by a visual analogue scale.

Methods: We used 23 subjects in two scenarios for this study. The emergency medical services (EMS) providers were composed of one basic emergency medical technician (EMT), one advanced EMT. Each subject underwent two scenarios, one using RE and the other using extrication involving a commercial KED.

Results: Time was significantly shorter using rapid extraction for all patients. Angles of head turning were all significantly larger when using RE. Weight marginally modified the effect of KED versus RE on the "angle to right after patient moved to backboard (p= 0.029) and on subjective movement on patient questionnaire (p=0.011). No statistical differences were noted on patient discomfort or pain.

Conclusion: This is a small experiment that showed decreased patient neck movement using a KED versus RE but resulted in increased patient movement in obese patients. Further studies are needed to determine if the KED improves any meaningful patient outcomes in the era of increased evidence-based medicine in emergency medical services.

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Figures

Figure 1
Figure 1
Application of Kendrick Extrication Device (yellow arrow) or cervical collar (green arrow).
Figure 2
Figure 2
Vehicle used for study.
See this image and copyright information in PMC

References

    1. Quinlan KP, Annest JL, Myers B, et al. Neck strains and sprains among motor vehicle occupants-United States, 2000. Accid Anal Prev. 2004;36(1):21–7. - PubMed
    1. George JE. Legal aspects of emergency treatment of the neurologically injured patient. Emerg Med Clin North Am. 1987;5(4):649–60. - PubMed
    1. Brunette DD, Rockswold GL. Neurologic recovery following rapid spinal realignment for complete cervical spinal cord injury. J Trauma. 1987;27(4):445–7. - PubMed
    1. Burney RE, Waggoner R, Maynard FM. Stabilization of spinal injury for early transfer. J Trauma. 1989;29(11):1497–9. - PubMed
    1. Geisler WO, Wynne-Jones M, Jousse AT. Early management of the patient with trauma to the spinal cord. Med Serv J Can. 1966;22(7):512–23. - PubMed

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