Final answer:
The Distal Femur Spanning Plate is effective for distal femur fractures as it provides stable fixation, ensuring proper alignment and healing, which is crucial given the multiple ossification centers in large bones like the femur.
Step-by-step explanation:
The Distal Femur Spanning Plate is highly effective for distal femur fractures because it provides stable fixation for complex fractures that include the joint surface. As these fractures can cause painful movements and early arthritis due to the rough and uneven surfaces, surgery using a Distal Femur Spanning Plate can stabilize these fractures, ensuring the bone ends align properly and stay in place during healing. This allows for the original joint surface smoothness to be restored, leading to the return of normal function. Large bones such as the femur have multiple secondary ossification centers along with a primary center, which necessitates cautious treatment to preserve the distal femur's structural integrity and function. Thus, using a plate spanning system allows for careful management of these fractures while respecting the anatomy and growth patterns of the femur.