What is a comminuted fracture?

• A. occurs when the bone is pressed together (compressed) on itself
• B. fracture in which the bone is splintered or crushed
• C. broken bone portion is pressed inward, typical of skull fracture
• D. fracture in which one bone fragment is pushed into another

Answer: (B)

A comminuted fracture means the bone is broken into several pieces, typically three or more fragments, often as a result of a high-energy injury. These multiple fragments can be displaced, and tiny pieces may lie around the main fracture ends. On X-ray, you’d see several fracture lines with several bone fragments rather than a clean, single break. This pattern is distinct from other fracture types: a compression fracture crushes bone along its length (common in vertebrae); a depressed fracture involves a fragment being pushed inward (typical of skull injuries); and an impacted fracture has one fragment driven into another. Because of the multiple fragments, healing can be more complex and may require surgical stabilization to align and hold the pieces in place.