<unk> s are low risk and may cause acute pain. As the bone buckles (or crushes), instead of breaking, they are a stable injury as there is no displacement of the bone. This mechanism is analogous to the crumple zones in cars. As with other<unk> s, the site of<unk>  may be tender to touch and cause a sharp pain if pressure is exerted on the injured area.
Torus fracture
Jefferson fracture
Bosworth fracture
Rolando fracture
Smith fracture
Jones fracture
March fracture
Holdsworth fracture