Final answer:
The 2 sizes of locking screws in the ankle fracture system are 4.5mm and 5.5mm. The 4.5mm screws are used for smaller fractures or compromised bone quality, while the 5.5mm screws are used for larger fractures or good bone quality.
Step-by-step explanation:
The two sizes of locking screws in the ankle fracture system are 4.5mm and 5.5mm. These screws are used to stabilize and fixate fractures in the ankle joint. The 4.5mm screws are typically used for smaller fractures or in cases where the bone quality is compromised, while the 5.5mm screws are used for larger fractures or when the bone quality is good.