Internal fixation of femur fractures: a new wireless electromechanical dynamization system

Dynamization of fracture fixation is an important strategy to reduce the time of recovery for a patient. The principal aim of this treatment is to stimulate the proliferation of callus in the early phase of recovery and to accelerate the new bone formation. External stabilization is a gold standard technique for this type of treatment, but internal fixation has recently gained increasing attention. In this framework, the here introduced dynamization system has been developed for the treatment of polytraumatized patients, who would benefit from the fast recovery guaranteed by a minimally invasive technique and by the elimination of the need for re-intervention. Indeed, thanks to an innovative concept, an electromechanical wireless system has been developed in order to accomplish in a simple outpatient intervention the unlocking of the axial load from static to dynamic mode.