Fixation of Displaced Midshaft Clavicular Fractures in Adults by Intramedullary Elastic Rod

Clavicular fracture, constitutes 2.6% e 5% of all adult fractures, most are located in the midshaft clavicle with different degrees of displacement. Conservative methods are commonly used for midshaft clavicular fractures treatment, but with various unsatisfactory complications such as nonunion, malunion and shoulders asymmetry. The rate of malunion after conservative treatment for the midshaft clavicular fractures reached 15%, and 30% patients were unsatisfied. Recently, early midshaft clavicular fractures could greatly reduce the incidence rate of nonunion and malunion. Open reduction and plate-screw fixation was considered as the gold standard with the advantages of firm fixation and earlier postoperative mobilization, but also with disadvantages of larger incision and more organizations being exposed, presenting with many postoperative complications. Intramedullary fixation treatment for mid-clavicular fractures has been favored due to its strengths including small incision, less periosteal striping, dispersion of stress and simple to operate However, early intra-medullary implants, such as Hagie pins and Kirschner wires, have been gradually replaced due to insufficient stability. In addition, various nails such as elastic stable intramedullar