What characterizes a contrecoup fracture?

• A. Fracture in a straight line
• B. Occurs on the opposite side of the trauma point
• C. Fracture of the physis
• D. Separation of a bone fragment at a tendon attachment

Answer: (B)

A contrecoup fracture is specifically characterized by occurring on the opposite side of the point where trauma was applied. This type of fracture typically results from an impact that initially affects one side of the skull or another bone structure, leading to a fracture on the opposite side due to the forces generated during the impact.

For example, if an individual received a blow to the front of the skull, a contrecoup fracture could manifest at the back of the skull. This phenomenon is often observed in scenarios like head injuries where the brain moves within the skull, creating stresses that can induce fractures at locations distant from the initial point of impact. Understanding this distinguishes contrecoup fractures from other types of fractures, such as those that occur directly at the point of impact.