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Related Experiment Videos

Assessing neck extension-flexion as a basis for temporomandibular joint dysfunction.

R P Howard1, J V Benedict, J H Raddin

  • 1Biodynamic Research Corporation, San Antonio, TX 78230.

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
|November 11, 1991
PubMed
Summary

This study re-evaluates the proposed mechanism for temporomandibular joint injury following whiplash trauma. The authors found the original explanation for cervical extension-flexion injury and temporomandibular joint derangement to be inaccurate.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Orthopedic Surgery
  • Traumatology

Background:

  • The temporomandibular joint (TMJ) can be affected by cervical extension-flexion injuries, commonly known as whiplash.
  • Weinberg and LaPointe proposed a mechanism for TMJ internal derangement resulting from such injuries in 1987.

Purpose of the Study:

  • To assess the accuracy of the previously proposed mechanism for TMJ injury in whiplash incidents.
  • To re-evaluate the biomechanics of temporomandibular joint derangement following cervical trauma.

Main Methods:

  • Review and critical analysis of the original proposed mechanism.
  • Assessment of biomechanical principles related to cervical extension-flexion injuries and TMJ function.

Main Results:

Related Experiment Videos

  • The previously proposed explanation for TMJ injury due to whiplash was found to be inaccurate.
  • The biomechanical model presented by Weinberg and LaPointe does not accurately represent the mechanism of injury.

Conclusions:

  • The established theory on whiplash-induced TMJ internal derangement requires revision.
  • Further research is needed to accurately elucidate the mechanism of temporomandibular joint injury in cervical extension-flexion incidents.