SURGERY PLANNING SIMULATION FOR CLOSED REDUCTION AND INTERNAL FIXATION

摘要

Careful planning of operations is critical to success of the closed reduction and internal fixation (CRIF) surgery to fix proximal femur fractures. This paper presents a novel surgery planning simulation for the CRIF. The developed simulation employs 3D femur model reconstructed from actual patient's CT data, and enables the user to make a plan on the model using 2D mouse. A projection scheme is developed to map a selected point on the monitor screen onto the 3D femur model. A centerline of the femur neck and cross section images are provided to help the user make optimal planning. The centerline of the femur neck is extracted by connecting two center points of cross sections selected by the surgeon. The cross section image is generated using intersection points between the femur model and a plane selected by the user. The simulation also displays post-operative appearance of the femur using 3D implants models.