Traumatic retroclival hematoma
Epidemiology
Traumatic retroclival hematomas are a rare entity.
Typically, they are epidural hematomas in pediatric patients.
Subdural hematomas and adult cases are sporadic. The 35 reported cases include 27 pediatric cases of epidural hematoma, 2 pediatric cases of subdural hematoma, 4 adult cases of epidural hematoma and 2 adult cases of subdural hematoma 1) 2) 3) 4) 5).
Etiology
They are usually epidural hematomas (being the tectorial membrane the anterior anatomical limit) diagnosed in children in the context of high-energy trauma, typically motor vehicle accidents. Lesion mechanism is considered to be a cervical flexion–extension injury in the pediatric spine that combines ligamentous laxity and high fulcrum movement in the craniocervical junction. In children, associated atlanto-occipital dislocation and systemic injuries have been reported in a significant number of cases, but not as a constant, sine qua non association 6).