A break of any size is called a fracture. If the broken bone punctures the skin, it is called an open fracture (compound fracture).
TYPES OF BROKEN BONES
Greenstick fracture: an incomplete fracture in which the bone is bent. This type of fracture occurs most often in children.
Transverse fracture: a fracture at a right angle to the bone's axis.
Oblique fracture: a fracture in which the break is at an angle to the bone’s axis.
An impacted fracture is one whose ends are driven into each other. This commonly occurs with arm fractures in children and is sometimes known as a buckle fracture.
Comminuted fracture: a fracture in which the bone fragments into several pieces.