In non-displaced fractures the bone ends after the fracture occurs still retain their normal position in the way they originated from.
Example:
However in displaced fractures the bone ends tend to be out of their normal position or alignment.
Example:
One of the most common fractures is a compound (open) fracture, where the break is clearly visible as it penetrates through the skin.
Example:
In a simple fracture (closed) the break is still apparent, but it does not penetrate through the skin
Example:
Complete fractures are when the bone is broken all the way through the bone
Example:
Incomplete fractures do not go all the way through the bone, almost as if it splinters the bone
Example:
Linear fractures are breaks that are parrallel to the longer axis of the bone
Example:
Whereas a transverse fracture breaks perpendicular to the bone's long axis
Example: