What type of injury is most common in children falling on their outstretched arm?

• A. Ulnar collateral ligament sprain
• B. Radial head fracture
• C. Scaphoid fracture
• D. Distal humeral fracture

Answer: (B)

When children fall on an outstretched arm, the most common type of injury they sustain is a radial head fracture. This occurs due to the mechanics of such a fall, where the force transmitted through the arm at the elbow can result in a fracture, particularly at the radial head, which is the top of the radius bone near the elbow joint.

The susceptibility of this injury in children is also influenced by their developing skeletal systems, where the growth plates are still open, making certain areas, like the radial head, more prone to injury during falls. The scenario of a fall onto an outstretched arm aligns well with the biomechanics of this fracture, as the force typically impacts the elbow region directly.

Understanding the occurrence of radial head fractures in this context is important for appropriate diagnosis and management, helping to ensure that treatment addresses not just the fracture, but also the potential for any associated injuries in the surrounding structures.