Which type of fracture is typically observed in cases of non-accidental injury in children?

In cases of non-accidental injury in children, the type of fracture that is typically observed is the metaphyseal corner fracture. This specific fracture occurs at the metaphysis of long bones, which is an area of developing bone that is particularly susceptible to injury from abusive forces. The mechanism behind these fractures typically involves a shearing or pulling force, which is often seen in cases of child abuse, where twisting or yanking actions may be applied to the limbs.

Metaphyseal corner fractures are significant because they often serve as indicators of physical abuse. They are less common in accidental injuries and can be detected through specific radiological findings. The identification of such fractures necessitates a high index of suspicion for non-accidental trauma and prompts further investigation into the child's circumstances.

In contrast, greenstick fractures, while more common in children due to their softer and more pliable bones, are usually the result of accidental falls rather than abuse. Long bone fractures might also occur from various mechanisms of injury, including accidents or sports injuries, making them less distinctive for non-accidental trauma. Compression fractures are more frequently associated with conditions like osteoporosis and are not characteristic of non-accidental injuries in children.