What is the primary function of a cast in fracture management?

The primary function of a cast in fracture management is to immobilize the fracture site. By immobilizing the affected area, a cast helps to maintain proper alignment of the broken bone(s) during the healing process. This immobilization is crucial because movement at the fracture site can lead to improper healing, malalignment, and potentially longer recovery times.

In addition to promoting proper healing, immobilization also reduces pain and protects the fracture from further injury. The cast restricts motion, which minimizes the risk of displacement of the fractured bone, allowing for the formation of a stable and continuous bone union. Proper immobilization is a key component of effective fracture management, thus highlighting the critical role of casts in orthopedic care.