Why is the fibrocartilaginous callus so important in bone repair?

The fibrocartilaginous callus is crucial in bone repair as it serves as a scaffold that stabilizes the fracture site. This temporary structure bridges the gap between the broken bone ends, allowing for cellular infiltration and the formation of new blood vessels. It also provides a framework for the eventual replacement by bone tissue through the process of ossification. Ultimately, the fibrocartilaginous callus facilitates the transition from inflammation to the healing phase, promoting overall recovery.