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One of the more common forms of injury following automobile accident is the so-called whiplash injury of the cervical spine and musculature. This injury usually results from a blow to the back of the automobile in which the individual is riding, causing first a forward movement of the body, followed by a rapid back-snapping of the head. This results in an injury to the neck. There are several reasons for this. The first is a result of the change in the automobile seat to accommodate the new lower models. The seat has also diminished in height, allowing a greater area of the body to be above the top of the seat. Second, the advent of expressways and super highways with congestion of traffic at entrances and exits makes the chain reaction accident a more common occurrence.
In order to prevent occurrence of the above injury, a modified headrest about 6
Ruedemann AD. AUTOMOBILE SAFETY DEVICE-HEADREST TO PREVENT WHIPLASH INJURY. JAMA. 1957;164(17):1889. doi:10.1001/jama.1957.62980170001006
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