A novel method for designing and fabricating custom-made artificial bones
A novel method for designing and fabricating custom-made artificial bones
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DOI：
10.1016/j.ijom.2011.03.018
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发表时间：
2011-09-01
影响因子：
2.4
通讯作者：
Takato, T.
中科院分区：
文献类型：
--
作者：
Saijo, H.;Kanno, Y.;Takato, T.
人造骨可用于面部畸形或缺损患者的组织填充。使用定制的人造骨骼，通过使用计算机辅助设计镜像健康侧的骨骼结构来生产。这种方法很简单，但重建详细结构的能力有限。作者发明了一种设计人造骨骼的新方法，可以更好地满足个体患者的需求。基于CT数据，使用喷墨打印机使用石膏制备三维（3D）模拟模型。操作者将一种特殊的不透射线的石蜡涂在模型上以创建目标结构。这种蜡含有造影剂，使其不透射线。调整浓度以实现易于操作和一致的高质量图像。涂上不透射线蜡后，通过CT重新检查3D模拟模型，并获得靶结构的数据。基于这些数据，通过喷墨打印机制造人工骨。虽然这种设计人工骨的新技术比传统方法稍微复杂一些，而且软组织的状态也应该被考虑到最佳的美学效果，但结果表明这种方法更好地满足了个体患者的要求。
Artificial bones are useful for tissue augmentation in patients with facial deformities or defects. Custom-made artificial bones, produced by mirroring the bone structure on the healthy side using computer-aided design, have been used. This method is simple, but has limited ability to recreate detailed structures. The authors have invented a new method for designing artificial bones, better customized for the needs of individual patients. Based on CT data, three-dimensional (3D) simulation models were prepared using an inkjet printer using plaster. The operators applied a special radiopaque paraffin wax to the models to create target structures. The wax contained a contrast medium to render it radiopaque. The concentration was adjusted to achieve easy manipulation and consistently good-quality images. After the radiopaque wax was applied, the 3D simulation models were reexamined by CT, and data on the target structures were obtained. Artificial bones were fabricated by the inkjet printer based on these data. Although this new technique for designing artificial bones is slightly more complex than the conventional methods, and the status of soft tissue should also be considered for an optimal aesthetic outcome, the results suggest that this method better meets the requirements of individual patients.