Fracture nonunion is the cessation of a normal reparative process of fracture healing. With an incidence of 2.5%-4.4%, it is one of difficult problem for orthopedics surgeons. Definition, classification, treatment and causes of fracture nonunion are reviewed in this article. The therapeutic principles and methods are introduced systematically combined with causes of fracture nonunion.
Fracture Healing ; Fractures, Ununited ; diagnosis ; therapy ; Humans