Korean J Anesthesiol.  2006 Dec;51(6):738-741. 10.4097/kjae.2006.51.6.738.

Locked-jaw as a Result of an Unexpected Anatomic Variation of the Temporomandibular Joint: A case report

Affiliations
  • 1Department of Anesthesiology and Pain Medicine, College of Medicine, Chungbuk National University, Cheongju, Korea. jhbae@chungbuk.ac.kr
  • 2Department of Oral & Maxillofacial Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea.

Abstract

A 36-year-old woman with an unremarkable medical history presented for laparoscopic cholecystectomy. Routine preoperative assessment of the patient's airway revealed normal jaw opening. Upon induction of anesthesia, her jaw locked in a nearly closed position. X-ray and MRI of the temporomandibular joints that were taken postoperatively showed normal findings except for the steeper posterior angles of the articular eminences. During the next induction of anesthesia, intubation was readily accomplished by opening the mandible with a forward pulling of the chin.

Keyword

articular eminence; difficult intubation; locked jaw; temporomandibuar joint

MeSH Terms

Adult
Anatomic Variation*
Anesthesia
Chin
Cholecystectomy, Laparoscopic
Female
Humans
Intubation
Jaw
Magnetic Resonance Imaging
Mandible
Temporomandibular Joint*
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