Temperature rise in surgical bone drilling is an important factor that leads to death of the bone cells, known as Osteonecrosis, and results into poor osteosynthesis i.e. implant failure. The present work aims to study the temperature rise during bone drilling by a recently developed operation theatre (OT) compatible machine. The temperature during the drilling process was recorded from K-type thermocouple devices, which were embedded in the human tibial bone at four different positions (at 0.5 mm, 1.0 mm, 1.5 mm, and 2.0 mm) from the drilling site. Comparative study revealed that rotary ultrasonic bone drilling (RUBD) technique produced lesser temperature (40 - 50%) than conventional drilling on human tibia. Statistical model was developed to predict the temperature rise in RUBD process using response surface methodology (RSM), and the optimum parameters were determined using Genetic Algorithm. Analysis of variance (ANOVA) was carried out at a confidence interval of 95 percent (α = 0.05) to determine the influence of various drilling parameters such as rotational speed, feed rate, drill diameter and abrasive particle size on temperature rise. It was observed that the rotational speed was responsible for the maximum temperature rise (51.8%) followed by drill diameter (18.8%), and abrasive particle size (14.3%); whereas, the feed rate contributed minimal (4%) temperature rise.

中文翻译：

---

人体旋转超声骨钻过程中温度升高的体外研究。

外科骨钻中的温度升高是导致骨细胞死亡的重要因素，称为骨坏死，并导致骨合成不良，即植入失败。本工作旨在研究使用最新开发的兼容手术室（OT）的机器进行骨骼钻孔时的温度升高。钻孔过程中的温度是从K型热电偶设备记录下来的，该设备嵌入到距胫骨部位四个不同位置（分别为0.5 mm，1.0 mm，1.5 mm和2.0 mm）的人体胫骨中。对比研究表明，旋转超声骨钻孔（RUBD）技术产生的温度低于传统的人类胫骨钻孔温度（40-50％）。开发了统计模型以使用响应面方法（RSM）预测RUBD过程中的温度上升，利用遗传算法确定了最佳参数。方差分析（ANOVA）在95％（α= 0.05）的置信区间内进行，以确定各种钻削参数（例如转速，进给速度，钻头直径和磨料粒径）对温度升高的影响。观察到，转速是最大温升的原因（51.8％），其次是钻头直径（18.8％）和磨料粒径（14.3％）；而进给速度对温度升高的贡献最小（4％）。观察到，转速是最大温升的原因（51.8％），其次是钻头直径（18.8％）和磨料粒径（14.3％）；而进给速度对温度升高的贡献最小（4％）。观察到，转速是最大温升的原因（51.8％），其次是钻头直径（18.8％）和磨料粒径（14.3％）；而进给速度对温度升高的贡献最小（4％）。