Coronoid fractures are rare and often associated with elbow dislocations. Some classify these fractures according to the size of the fracture fragment and the stability of the joint. Type I fractures involve an avulsion the tip of the coronoid process, type II fractures involve 50 percent or less of the coronoid process, and type III fractures involve greater than 50 percent of the coronoid process and are unstable. Type I fractures may be treated with early immobilization. Types II and III fractures are generally unstable and are treated by open reduction and internal fixation. Emergency treatment consists of immobilization, ice, elevation, and early orthopedic consultation.
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