What is the correct order of fracture repair?

1. Hematoma formation: Within hours of a fracture, broken blood vessels form a blood clot (hematoma) at the fracture site.

2. Inflammation: The hematoma attracts inflammatory cells, such as neutrophils and macrophages, to the area. These cells help to clean up the debris from the damaged tissue and promote healing.

3. Soft callus formation: Over the next few days, a soft callus forms around the fracture site. This callus is made up of granulation tissue, which is a mixture of new blood vessels, fibroblasts, and collagen.

4. Hard callus formation: Over the next few weeks, the soft callus mineralizes and hardens to form a hard callus. This hard callus provides strength and stability to the fracture site.

5. Remodeling: Over the next few months, the hard callus is remodeled to form new bone tissue. This process is called bone remodeling.