Podcast #149: TMJ Dislocation

e3f99d2b616c9e4c6b8920b6f2ff10_big_galleryRun Time: 3 minutes

Author: Jared Scott M.D.

Educational Pearls:

  • TMJ dislocations are generally a rare occurrence. Connective tissue disorders such as Ehlers-Danlos syndrome and Marfan syndrome increase the likelihood of dislocation.
  • TMJ dislocations can occur after benign activities such as eating, yawning, vomiting, dental treatment, and laughing, but also occur after trauma.
  • Three common techniques for reduction include: 1) Hooking both thumbs over the patient’s canines, placing a Bite Block in the mouth, and pulling down on the jaw 2) Performing the same technique as #1, but from behind the patient 3) Placing a 5-10g syringe in the back of the patient’s mouth near the molars and instructing the patient to attempt to roll the syringe around.
  • Once the jaw is reduced, patient’s with brackets will have their jaw wired shut, which is the same principle as a shoulder dislocation getting a sling to promote healing.
  • Be aware of where the wire cutters are in the emergency room in case of a patient with a wired jaw needs an emergent airway.

Link to Podcast: http://medicalminute.madewithopinion.com/tmj-dislocation/

References: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4668726/

http://www.ncbi.nlm.nih.gov/pubmed/25278137

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