Objective: To investigate the severity of injuries and the pattern of jaw and facial injuries in trauma patients and also to determine the predictors of the outcome in these patients.
Methods: This cross-sectional study was conducted on 2697 patients with facial trauma who referred to trauma center in Shahid Rajaee (Emtiaz) Hospital, Shiraz, Iran during 2010-2015. Injury severity score was determined through the conversion of injury codes of the International Classification of Diseases, tenth revision (ICD-10). Binary logistic regression by backward method was used to determine the partial effects of independent risk factors on death odds ratio.
Results: The mean age of patients with maxillofacial injuries was 31.96 ± 15.80 years. The mean injury severity score (ISS) was 4.3 ± 4.4 and about 80% of the patients had an ISS between 1 and 8. Mandible fracture and ear injuries, respectively, were the most and the least prevalent types of maxillofacial injury. The odds ratio of death by motorcycle accident was 1.7 times higher than falling down in maxillofacial patients.
Conclusion: Age, gender (male), ISS, and mechanism of injury were the significant predictors of mortality in the facial trauma patients. Mandible fracture and ear injury, respectively, were the most and the least prevalent types of maxillofacial injury. Our findings demonstrate the need for referral to the maxillofacial surgeon and maxillofacial surgery should be in connected with neurosurgical centers.
Keywords: Injury Severity Score; Maxillofacial trauma; Mechanism of injuries; Mortality.