What is a sign of a healed bone?

• A. Bone Calcification
• B. Callus Formation
• C. Osteoarthritis
• D. Bone Remodeling

Answer: (A)

When a bone heals, it progresses from a soft tissue callus to a hard, mineralized bridge. This mineralization, called calcification, deposits calcium salts into the healing tissue and forms a calcified hard callus that bridges the fracture. Seeing this calcified tissue across the fracture line on imaging indicates the bone is transitioning into a healed state. Callus formation shows healing is underway, but calcification specifically marks the maturation toward a solid, a fully formed bone. Osteoarthritis is unrelated to fracture healing, and remodeling represents later shaping after healing is largely complete, not the immediate sign of healing itself.