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Journal Article

Citation

Boole JR, Holtel M, Amoroso P, Yore MM. Laryngoscope 2001; 111(10): 1691-1696.

Affiliation

Otolaryngology--Head and Neck Surgery, Tripler Regional Medical Center, Honolulu, Hawaii 96859-5000, USA. BOOLEJ001@HAWAII.RR.COM

Copyright

(Copyright © 2001, Lippincott Williams and Wilkins)

DOI

unavailable

PMID

11801927

Abstract

OBJECTIVE: We present the frequencies of various types of mandibular fractures along with associated mechanisms and injuries. METHODS: Retrospective analysis of 5196 mandible fractures in 4381 patients extracted from the Total Army Injury and Health Outcomes Database (TAIHOD), a comprehensive database developed by the U.S. Army Research Institute of Environmental Medicine (USARIEM) that links population data to all hospitalizations among active duty army soldiers. The database is based on the ICD-9 CM coding system. RESULTS: We found the following frequencies for specific mandible fracture locations: angle 35.6%, symphysis 20.1%, subcondylar 14.2%, body 12.7%, condylar process 9.1%, ramus 4.5%, alveolar border 2.7%, and coronoid process 1%. The mechanisms of injury were separated into seven categories. Fighting accounts for 36.2%, automobile accidents for 18.6%, athletics for 13.6%, falls for 9.7%, motorcycle accidents for 3.1%, other land transport accidents for 3%, and miscellaneous causes for 15.8%. A few fracture locations appear to be associated with specific mechanisms. Of 82 alveolar border fractures with known mechanisms, 37% resulted from automobile accidents. Of 1094 angle fractures with known mechanisms, 48.6% resulted from fighting. Our data show that the majority of fractures were isolated to one location. Only one fracture was recorded for 70.6%, 29.2% have two fractures recorded, 0.2% have three or more fractures recorded. Associated injuries were common and include facial lacerations 1236 (28.2%), non-mandible facial bone fractures 733 (16.7%), intracranial injury 403(9.2%), internal injuries 229 (5.2%), fractures of the upper limb 295 (6.7%), fractures of the lower extremity 302 (6.9%), and cervical fractures 34 (0.8%). CONCLUSIONS: The mechanism of injury is important in determining the most likely resultant mandible fracture in the case of angle of mandible and alveolar ridge fractures. The clinician should maintain a high level of suspicion for associated injuries that occur more than one fourth of the time and even more frequently in motor vehicle accident victims. Associated intracranial injury is particularly important to rule out. Associated facial fractures, intracranial injury, internal injuries, and extremity injuries are all more common than cervical fractures.


Language: en

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