Fractures of the bones are classified in a number of ways. A simple fracture involves a single fracture line through a bone. A comminuted fracture is one in which the bone has been fractured into two or more fragments. An open fracture is one in which the fractured bone penetrates the skin.
Update Date 5/9/2015
Updated by: C. Benjamin Ma, MD, Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery, San Francisco, CA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.