(from the article `fracture`) ...the bone does break into separate pieces, the condition is called a complete fracture. An impacted fracture occurs when the broken ends of the ...
A fracture in which the bone is broken into pieces. ... (05 Mar 2000) ... 
one in which the bone is splintered or crushed, with three or more fragments.
Bone fractured into several pieces.
Type: Term Definitions: 1. a fracture in which the bone is broken into more than two fragments.
Comminuted fracture: A fracture in which bone is broken, splintered or crushed into a number of pieces. Note that 'comminuted fracture' is distinguished from a 'compound fracture,' an open fracture in which the bone is sticking through the skin.Common Misspellings: comminuted facture
A comminuted fracture is a fracture where the bone is not simply snapped in one or more places, but is broken up into several small fragments, often as the result of a crushing blow.
A comminuted fracture is a break or splinter of the bone into more than two fragments. Since considerable force and energy is required to fragment bone, fractures of this degree occur after high-impact trauma such as in vehicular accidents. External fixation devices such as splints and casts are usually inadequate in treating this type of fracture....
Fracture in which the affected bone is broken or crushed into small fragments.
[n] - fracture in which the bone is splintered or crushed
a crushed or shattered bone 
noun fracture in which the bone is splintered or crushed
a fracture of a bone in which the separated parts are splintered or fragmented. See illus. under