Final answer:
Fractures that require surgical treatment include open fractures or complex fractures that cannot be set correctly without surgery.
Step-by-step explanation:
Fractures that require surgical treatment include open fractures or complex fractures that cannot be set correctly without surgery. Open reduction is a surgical procedure that involves exposing the fracture site and resetting the bone. This is necessary in cases where the bone is not properly aligned or there are severe complications. For example, a fractured diaphysis of the femur can release fat globules into the bloodstream leading to respiratory distress. In such cases, surgery is needed to treat the fracture and prevent further complications.