Biomechanical aspects of head trauma in pedestrians.

The biomechanical and lesional aspect in traffic accidents depends on the physical phenomena triggered by collision, the aggressional factors aching on the human being as a complex of mechanical and kinetical order. In spite of the fact that usually pedestrians show up as polytraumatized (65% of the 500 cases studied) the severity of their lesions is conferred by the cranio-cerebral trauma which in this way becomes the most frequent cause of death.