Abstract
As computer aided surgery in microsurgery, vascularized fibula graft with three dimension (3D) bone model was performed on 3 cases. The cases consisted of one pseudoarthrosis of femur and 2 pseudoarthrosis of tibia. Computed tomography (CT) was performed preoperatively. Standard triangulated language (STL) file of bone models constructed from CT data. After input of STL file, 3D printer printed out 3D bone models made of acrylonitrile butadiene styrene (ABS) resin. The models which were sterilized by ethylene oxide, were used during the operation. In the operation with 3D bone model, we can gain an understanding of deformed bone shape easily, and transplants of vascularized fibula became smooth. In addition, the models might decrease the frequency of image intensifier scan during the operation. Here lists the benefit of preoperative modeling method in vascularized fibula graft ; easy understanding of deformed bone shape, down dose of radiation, smooth transplants of fibula, and shortening of operation time.
