Design and preclinical study of a fracture reduction and fixation system
Objective To investigate the safety,efficacy,and clinical value of a fracture reduc-tion and fixation system.Methods The design and application of components[Kirschner wire(K-wire)limiter and K-wire guiding locking device]of the fracture reduction and fixation system were described.Six surgeons implanted K-wires into synthetic bones using the K-wire limiter or by percep-tion respectively,and the length of K-wire protrusion was assessed.K-wire guiding locking device combined with locking plates and two 1.5 mm K-wires,two 1.5 mm K-wires,as well as two 2.0 mm K-wires were used to fix a fracture model constructed by synthetic bones,and the torque at failure was measured.Results The K-wire limiter reduced the length of K-wire protrusion(P＜0.001).The failure torque of fractures fixed by K-wire guiding locking device with locking plates and two 1.5 mm K-wires was larger than those fixed with two 1.5 mm K-wires and two 2.0 mm K-wires(P＜0.05).Conclusion The fracture reduction and fixation system offers a new technique for reducing and recon-structing fractures,assessing and optimizing the position of locking plate screws,as well as protecting the blood supply of fractures.
万方数据
维普
