What accurately describes the role of the locking bushings in screw placement during fracture repair?

The role of locking bushings in screw placement during fracture repair is primarily to facilitate variable angulation of screw placement. This capability is crucial in complex fractures where achieving optimal screw trajectory can significantly enhance the stability of the fracture fixation. Locking bushings allow surgeons to insert screws at different angles while maintaining a secure lock, thereby accommodating anatomical variations and providing flexibility in the alignment of the screws relative to the fracture site.

This characteristic ensures that the screws can be placed in an optimal position for mechanical advantage, allowing for better fixation of the fractured bone. Furthermore, the variable angulation capability helps in navigating around anatomical structures, such as nerves or blood vessels, that may be present in the surgical field.