Development of a device for safe spatial orientation of the spokes of an extra-focal osteosynthesis apparatus

Abstract

A special place in the methods of surgical treatment of bone fractures is occupied by transosseous osteosynthesis using external fixation devices.The aim of the study is to develop a device for the safe spatial orientation of the wires of the extrafocal osteosynthesis apparatus.Materials and methods. To develop a device for the spatial orientation of the external fixation spokes, a 3D model was designed with further reproduction on a 3D printer. The development of the device was carried out by placing the wires of the external fixation apparatus on 36 bones of the human lower jaw, on which a fracture in the angle was simulated.Results and discussion. The device for the spatial orientation of the spokes of the external fixation device for the lower jaw exoselet is partially reproduced using a 3D printer, which allows individualizing the device parts at the stages of preparation for surgery.Conclusions. Effect: control of the depth of immersion of osteofixers over the entire thickness of the bone and simplification of the choice of the optimal angle of mutual spatial orientation during their introduction and the greatest stable fixation of the fragments of the lower jaw during closed extrafocal osteosynthesis.