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What are the Risk Factors for Mortality Among Patients Who Suffer Le Fort III Fractures?
Dani Stanbouly1, Michael Baron2, Syed Salim Abdul-Wasay3
1Dental Student, Columbia University, College of Dental Medicine, New York, NY.
Purpose:
Le Fort III fractures are the most severe subtype of the Le Fort fractures and are associated with adverse clinical outcomes. The purpose of this study was to identify risk factors for mortality among patients who suffer Le Fort III fractures.
Materials And Methods:
A retrospective cohort study was completed using the 2016-2018 National Inpatient Sample. Patients with isolated Le Fort III fractures were selected. Patients who incurred bone fractures or organ injuries outside the head and neck were excluded. There were multiple, heterogenous predictor variables. The primary outcome variable was mortality. Relative risk was used to determine independent risk factors of mortality. Statistical significance was deemed for P values less than .05.
Results:
The final sample consisted of 559 patients (mean age, 45.9 years) who suffered a Le Fort III fracture, of whom 15 patients (2.68%) died. Most patients were male (82.7%) middle-aged adults (42.9%) of White race (66.5%) within the lowest income quartile (31.7%) that lived in large metro areas (54.9%). Relative to males, females were nearly 62 times more likely to die (P < .01). Relative to privately insured subjects, uninsured subjects were 23 times (P < .05) more likely to die. Relative to weekday admissions, weekend admissions increased the risk of mortality by 8 times (P < .05). Cranial vault fractures (odds ratio, 7.24; P < .05) and upper cervical fractures (odds ratio, 63.27; P < .05) were risk factors for mortality. Relative to males, females were at an increased risk for mortality (relative risk [RR] 7.14, 95% confidence interval [CI] 2.60, 19.61). Skull base fracture (RR 2.99, 95 CI 1.04, 8.63), cranial vault fracture (RR 3.04, 95 CI 1.07, 8.65), subdural hemorrhage (RR 2.98, 95 CI 1.10, 8.05), subarachnoid hemorrhage (RR 6.73, 95 CI 2.34, 19.35), and injury of blood vessels at neck level (RR 13.24, 95 CI 2.46, 71.16) were each risk factors for mortality.
Conclusions:
Intracranial injury was not a risk factor for mortality. Instead, cranial vault fractures and skull base fractures increased the risk for mortality. In addition, uninsured patients and female patients were each at an increased risk for mortality.
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