American Academy of Professional Coders (AAPC) Practice Exam 2026 - Free AAPC Practice Questions and Exam Prep Guide

A greenstick fracture is characterized by the bending and partial breaking of a bone, where one side of the shaft is broken while the other side remains intact and bent. This type of fracture is often seen in children, whose bones are more flexible than those of adults, making them more prone to this type of injury.

The other choices do not accurately describe a greenstick fracture. A, which suggests that this type of fracture commonly occurs in adults, is misleading since greenstick fractures are primarily seen in young patients. C describes a completely shattered bone, which aligns more with a comminuted fracture rather than a greenstick fracture. D implies a cause of excessive pressure, which does not directly relate to the nature of a greenstick fracture, as it specifically pertains to the unique bending and breaking of the bone structure rather than just the impact of pressure. Therefore, the distinguishing feature of a greenstick fracture is that only one side of the bone is broken while the other side remains bent.