Accidental injuries to occupants of the front seat of automobiles are so typical that they can be classified into two groups. The injuries sustained by the driver have become known as "steering post injuries" and those sustained by others in the front seat are classified as "guest passenger injuries."
Steering post injuries are caused by sudden stops when the driver is forced against the steering wheel. Frequently the chin is lacerated, the mandible may be fractured, and in more severe injuries the maxilla and nose may be involved. Chest, knee and ankle injuries are also common.
Drivers nevertheless occupy the safest seat in the car; protected by the steering wheel, they escape injury in many severe accidents.
"Guest passengers" in the front seat beside the driver are on the contrary in the most dangerous seat in the car because of their unprotected position in case of sudden stops. Children sitting
STRAITH CL. GUEST PASSENGER INJURIES. JAMA. 1948;137(4):348-351. doi:10.1001/jama.1948.02890380018005