2023 年 116 巻 7 号 p. 617-624
A precise knowledge of the local three-dimensional anatomy is necessary for temporal bone surgeons, because of the narrow surgical field available to them under the microscope or endoscope and the need to avoid irreversible damage to critical structures. In addition, temporal bone surgery has until now been considered challenging because it has been mainly learnt directly in the operating room through On the Job training (OJT). Recently, however, there have been greater opportunities for OFF the job training (OFF-JT), in that training and simulation for temporal bone surgery has become possible using cadavers, virtual reality, and 3D models. Each OFF-JT has its own advantages and disadvantages, but the 3D temporal bone model has the advantages of being free from ethical issues, of high anatomical reproducibility, and of allowing training using the same instruments as in actual surgery. The 3D temporal bone model is effective for surgical training and is also useful for preoperative and intraoperative simulation. By allowing the problems of cost and manufacturing complexity to be overcome, the 3D model is expected to be more widely used and to contribute to safe and reliable temporal bone surgery.