Spine Center, Omaezaki Municipal Hospital, Shizuoka 437-1696, Japan.
Medical Photonics Research Center, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan.
Medicina (Kaunas). 2021 Jan 14;57(1):71. doi: 10.3390/medicina57010071.
Although there have been research on bone cutting, there have been few research on bone grinding. This study reports the measurement results of the experimental system that simulated partial laminectomy in microscopic spine surgery. The purpose of this study was to examine the fluid lubrication and cooling in bone grinding, histological characteristics of workpieces, and differences in grinding between manual and milling machines. Thiel-fixed human iliac bones were used as workpieces. A neurosurgical microdrill was used as a drill system. The workpieces were fixed to a 4-component piezo-electric dynamometer and fixtures, which was used to measure the triaxial power during bone grinding. Grinding tasks were performed by manual activity and a small milling machine with or without water. In bone grinding with 4-mm diameter diamond burs and water, reduction in the number of sudden increases in grinding resistance and cooling effect of over 100 °C were confirmed. Manual grinding may enable the control of the grinding speed and cutting depth while giving top priority to uniform torque on the work piece applied by tools. Observing the drill tip using a triaxial dynamometer in the quantification of surgery may provide useful data for the development of safety mechanisms to prevent a sudden deviation of the drill tip.
虽然已经有关于骨切割的研究，但关于骨研磨的研究却很少。本研究报告了模拟显微镜脊柱手术部分椎板切除术的实验系统的测量结果。本研究的目的是检查骨研磨中的流体润滑和冷却、工件的组织学特征以及手动和铣床之间的研磨差异。使用 Thiel 固定的人髂骨作为工件。神经外科微型钻头用作钻系统。将工件固定在 4 分量压电测力计和夹具上，用于测量骨研磨过程中的三轴功率。通过手动操作和带有或不带有水的小型铣床进行研磨作业。在直径为 4 毫米的金刚石磨轮和水的骨研磨中，确认减少了研磨阻力的突然增加次数，并且冷却效果超过 100°C。手动研磨可以在优先考虑工具施加到工件上的均匀扭矩的同时控制研磨速度和切削深度。在手术量化中使用三轴测力计观察钻头尖端，可能为开发防止钻头尖端突然偏离的安全机制提供有用数据。
