Simulation of CD surgery on a personalized finite element model: Preliminary results

The aim of this study is to simulate correction of scoliosis using a finite element model in order to predict 3D correction with CD technique. The geo metry of the 3D finite element model is personalized as well as the mechani cal behavior. Hence each step of Co surgery is simulated : patient on the t raction table, fixation of screws and hooks, linkage between rod and hooks and at last the rotation maneuver. Principles of validation is presented us ing per-operative measurements. Feasibility of the method is demonstrated o n one given patient. First results are promising and would allow the surgeo ns to objectively analyze various strategies or techniques.