Closed fracture. Fracture that does not communicate with the outside.
Open fracture. Fracture that communicates with the external environment.
Comminuted fracture. Consisting of three or more fragments.
Avulsion fracture. Fragment of bone pulled from its normal position by a muscular contraction or resistance of a ligament.
Greenstick fracture. Incomplete, angulated fracture of a long bone, particularly in children.
Torus fracture. Described as a buckle fracture or compression of the bone without cortical disruption. Seen especially in the distal forearms of children.