A bone breaks or fractures when it separates into two or more pieces from stress.
Fractured bones are often classified as “closed fractures” or “open fractures” and “simple” or “comminuted” (or multi-fragmentary).
Closed fractures occur where the skin remains intact. Open fractures involve wounds that communicate with the fracture and may expose the bone to contamination. Simple fractures are occur along one line, dividing the bone into two pieces. [...]