Which stage of fracture healing involves the maturation of bone?

• A. Hematoma stage
• B. Inflammation stage
• C. Consolidation stage
• D. Remodeling stage

Answer: (D)

The remodeling stage of fracture healing is crucial as it involves the maturation and refinement of the newly formed bone. During this phase, which can last for months to years, the initial woven bone that forms in response to the fracture is gradually replaced by more mature, organized lamellar bone. This process ensures that the strength and structural integrity of the bone are restored.

During remodeling, osteoclasts resorb excess bone, while osteoblasts lay down new bone in response to mechanical stress and loading. This not only helps in the healing of the fracture but also optimizes the bone's shape and density, making it more suited to its function in the body. Ultimately, the remodeling stage plays a vital role in achieving the final strength of the bone and ensuring it can withstand normal physiological stresses.