Mori Kentaro, Yamamoto Takuji, Oyama Kazutaka, Ueno Hideaki, Nakao Yasuaki, Honma Keiichirou
Department of Neurosurgery, Juntendo University Shizuoka Hospital, Izunokuni, Shizuoka, Japan.
Neurol Med Chir (Tokyo). 2008 Dec;48(12):582-7; discussion 587-8. doi: 10.2176/nmc.48.582.
Experience with dissection of the cavernous sinus and the temporal bone is essential for training in skull base surgery, but the opportunities for cadaver dissection are very limited. A modification of a commercially available prototype three-dimensional (3D) skull base model, made by a selective laser sintering method and incorporating surface details and inner bony structures such as the inner ear structures and air cells, is proposed to include artificial dura mater, cranial nerves, venous sinuses, and the internal carotid artery for such surgical training. The transpetrosal approach and epidural cavernous sinus surgery (Dolenc's technique) were performed on this modified model using a high speed drill or ultrasonic bone curette under an operating microscope. The model could be dissected in almost the same way as a real cadaver. The modified 3D skull base model provides a good educational tool for training in skull base surgery.
海绵窦和颞骨解剖经验对于颅底外科手术培训至关重要，但尸体解剖的机会非常有限。本文提出对一种市售的三维（3D）颅底原型模型进行改进，该模型采用选择性激光烧结法制作，包含内耳结构和气房等表面细节和内部骨质结构，改进后纳入人工硬脑膜、颅神经、静脉窦和颈内动脉用于此类手术培训。在手术显微镜下，使用高速钻头或超声骨刮匙对该改良模型进行经岩骨入路和硬膜外海绵窦手术（多伦茨技术）操作。该模型的解剖方式几乎与真实尸体相同。改良后的3D颅底模型为颅底外科手术培训提供了良好的教育工具。
