Usually, it takes a large amount of energy to<unk>  the<unk>  the force may be indirect but is more often direct. The<unk> is<unk> d as the result of significant blunt trauma, as occurs in vehicle collisions. About three quarters of cases are caused by high-speed car and motorcycle collisions. Falls and blows to the shoulder area can also cause the injury. Crushing injuries (as may occur in railroad or forestry accidents) and sports injuries (as may occur in horseback riding, mountain biking, bmxing or skiing) can also<unk>  the<unk> <unk>  can result from electrical shocks and from seizures: muscles pulling in different directions contract powerfully at the same time. In cardiopulmonary resuscitation, the chest is compressed significantly;<unk>  may occur as a complication of this technique.
Scapular fracture
Bosworth fracture
Jefferson fracture
Rolando fracture
March fracture
Scaphoid fracture
Hume fracture
Smith fracture