When to suspect head injury or cervical spine injury in maxillofacial trauma?

Background: The global status report of the World Health Organization (WHO) on road safety suggested that India is leading in road traffic accidents in the world. According to the report on road accidents in India in 2010 by the Transport Research Wing, Ministry of Road Transport and Highways, New Delhi, Kerala ranked third in accidents per lakh population and second in persons injured per lakh population. As the face, brain, and cervical spine are in close proximity with one another, associated injuries can be suspected. The aim of this study was to determine the relationship between the severity of head, cervical spine, and facial injury and incidence of facial injury in patients with head and/or cervical spine injury. Materials and Methods: A prospective cohort study was conducted over a period of one year. The study population included all patients having computed tomography (CT)-demonstrable head injury, radiographic evidence of cervical spine injury, and associated head or cervical spine injury with facial injury. Data were analyzed using the chi-square test using statistical package SPSS. A P value less than 0.05 was considered statistically significant. Results: Of 124 patients, 59 (47.6%) had facial injuries. As severity of head injury increased, the number of facial injuries decreased. Statistically, no significant association between facial and head injury was seen. A statistically significant association between dentoalveolar involvement and cervical spine injury was seen (P < 0.001). The proportion of injuries in patients with cervical spine injuries alone was significantly lower in the frontal (P = 0.001) and orbital (P = 0.004) regions and higher in the mandibular region (P = 0.010). Conclusion: Midface injuries were more commonly associated with head injuries. Decreased facial involvement leads to increased severity of head injury. Simple injuries of the cervical spine were more commonly associated with facial injuries.