Open reduction for a fracture uses to align the ends of the bone.

Surgery

Explanation:

In treatment of fractured bones through open fracture methodology, the care provider or the surgeon creates an opening to expose the bone and hence carry out its treatment. Open fractures involve surgery and hence they are not treated in emergency ward like other fractures instead they are treated in an operating room through an incision. In open fractures the bone pierces the skin and hence its realignment require treatment through operation only

friedrich meischer discovered it in white blood cell