Wang Yu, Cao Meng, Zhao Xiangrui, Zhu Gang, McClean Colin, Zhao Yuanyuan, Fan Yubo
Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; Research Institute of Beihang University in Shenzhen, Shenzhen 518057, China.
Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China.
Med Eng Phys. 2014 Nov;36(11):1408-15. doi: 10.1016/j.medengphy.2014.04.007. Epub 2014 Jun 4.
Heat generated during bone drilling could cause irreversible thermal damage, which can lead to bone necrosis or even osteomyelitis. In this study, vibrational drilling was applied to fresh bovine bones to investigate the cutting heat in comparison with conventional drilling through experimental investigation and finite element analysis (FEA). The influence of vibrational frequency and amplitude on cutting heat generation and conduction were studied. The experimental results showed that, compared with the conventional drilling, vibrational drilling could significantly reduce the cutting temperature in drilling of cortical bone (P<0.05): the cutting temperature tended to decrease with increasing vibrational frequency and amplitude. The FEA results also showed that the vibrational amplitude holds a significant effect on the cutting heat conduction.
骨钻孔过程中产生的热量可能会导致不可逆的热损伤，进而引发骨坏死甚至骨髓炎。在本研究中，通过实验研究和有限元分析（FEA），将振动钻孔应用于新鲜牛骨，以研究其与传统钻孔相比时的切削热情况。研究了振动频率和振幅对切削热产生及传导的影响。实验结果表明，与传统钻孔相比，振动钻孔在皮质骨钻孔时能显著降低切削温度（P<0.05）：切削温度倾向于随振动频率和振幅的增加而降低。有限元分析结果还表明，振动振幅对切削热传导有显著影响。
