Final answer:
The final stage of bone fracture healing is remodeling, where the new bone is reshaped, potential swelling reduces, and the healed bone blends with the original bone structure.
Step-by-step explanation:
The last step in the fracture and healing process of a bone is called remodeling. During this phase, the new bone that has formed is reshaped and restored to its original form. The remodeling can involve the conversion of spongy bone brought about by the fracture healing process into the compact bone that constitutes the normal bone surface. While a slight swelling may initially remain, through ongoing remodeling, the region typically smoothens out leaving little or no evidence of the previous fracture.