Calcaneal Fractures occur mostly during :
Fall from a height , Twisting injury to the ankle, Motor vehicle collision
The severity of a fracture can vary. For example, a simple twist of the ankle may result in a single crack in the bone. The force of a head-on car collision, however, may result in the bone being shattered.
Similar fractures can result from different mechanisms. For example, if you land on your feet from a fall, your body’s weight is directed downward. This drives the talus bone directly into the calcaneus.
In a motor vehicle crash, the calcaneus is driven up against the talus if the heel is crushed against the floorboard. In both cases, the fracture patterns are similar. As a rule, the greater the impact, the more the calcaneus is damaged.
In a high-energy fracture, other injuries, such as fractures of the spine, hip, or other heel, can occur.