3Dプリンターによる手術シミュレーション

Surgical Simulation Using a Three-Dimensional Printer

Point

・3Dプリンターの性能の向上は，より精密な立体模型の造形を可能とし，脳神経外科領域の手術シミュレーションに応用可能となっている．

・石膏を主体とする粉末固着式積層法で造形した立体模型はドリリングが容易であり，頭蓋底腫瘍の手術シミュレーションに優れている．

・各症例に応じて3Dプリンターの造形を工夫することで，手術シミュレーションの有用性が高まる．

＊本論文中、［Video］マークのある図につきましては、関連する動画を見ることができます（公開期間：2027年4月まで）。

　3D printers have been applied in bone-based surgeries, including craniofacial, plastic, oral, and orthopedic surgeries. The improved capabilities of diagnostic imaging equipment and 3D printers have enabled the development of more precise models, and research on surgical simulations and training in the field of neurosurgery is increasing. This review outlines the use of 3D printers in neurosurgery at our institution in terms of modeling methods and surgical simulations. Modeling with the powder-sticking lamination method using plaster as the material allows drilling, which is a surgical procedure. Therefore, it is useful for simulating skull base tumors, such as petrosectomy in a combined transpetrosal approach or anterior clinoidectomy in an orbitozygomatic approach. The color coding of each part of the model facilitates anatomical understanding, and meshed tumor modeling allows deep translucency. As shown above, the 3D printer's modeling ingenuity allows for useful surgical simulations for each case.