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Korean J Anesthesiol > Volume 51(6); 2006 > Article
Korean Journal of Anesthesiology 2006;51(6):738-741.
DOI: https://doi.org/10.4097/kjae.2006.51.6.738   
Locked-jaw as a Result of an Unexpected Anatomic Variation of the Temporomandibular Joint: A case report.
Jin Ho Bae, Hyo Seok Na, Geon Kim, Kyoung Won Kim, Seung Woon Lim
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.
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.
Key Words: articular eminence; difficult intubation; locked jaw; temporomandibuar joint


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