Forearm Fracture (Radius and Ulna)
Medical term: Forearm Diaphyseal Fracture
Overview
A forearm fracture involves a break in the radius, the ulna, or both bones of the forearm. In adults, these fractures are usually caused by falls, direct blows, or motor vehicle accidents. The radius and ulna work together to allow the forearm to rotate, so precise alignment of both bones is critical for preserving this function. When both bones are broken, the injury is referred to as a “both-bone” forearm fracture.
At our San Diego orthopedic practice, adult forearm shaft fractures are most often treated surgically with open reduction and internal fixation using plates and screws. This approach allows accurate restoration of bone alignment and early return to motion. In children, many forearm fractures can be treated with casting due to the bone’s ability to remodel during growth. Following treatment, physical therapy focuses on restoring forearm rotation, grip strength, and overall upper-extremity function.