Comparison between Torsional Ultrasonic Assisted Drilling and Conventional Drilling of Bone: An in vitro Study

Authors: Nikoo Soleimani

Abstract:

Background: Reducing torque during bone drilling is one of the effective factors in reaching to an optimal drilling process. Methods: 15 bovine femurs were drilled in vitro with a drill bit with a diameter of 4 mm using two methods of torsional ultrasonic assisted drilling (T-UAD) and convent conventional drilling (CD) and the effects of changing the feed rate and rotational speed on the torque were compared in both methods. Results: There was no significant difference in the thrust force measured in both methods due to the direction of vibrations. Results showed that using T-UAD method for bone drilling at feed rates of 0.16, 0.24 and 0.32 mm/rev led for all rotational speeds to a decrease of at least 16.3% in torque compared to the CD method. Further, using T-UAD at rotational speeds of 355~1000 rpm with various feed rates resulted in a torque reduction of 16.3~50.5% compared to CD method. Conclusions: Reducing the feed rate and increasing the rotational speed, except for the rotational speed of 500 rpm and a feed rate of 0.32 mm/rev, resulted generally in torque reduction in both methods. However, T-UAD is a more effective and desirable option for bone drilling considering its significant torque reduction.

Keywords: Torsional ultrasonic assisted drilling, torque, bone drilling, rotational speed, feed rate.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.2643950

References:

[1] W. Allan, E. D. Williams, C. J. Kerawala, Effects of Repeated Drill Use on Temperature of Bone During Preparation for Osteosynthesis Self-Tapping Screws, British Journal of Oral and Maxillofacial Surgery, Vol. 43, pp. 314-319, 2005.
[2] Thomas, R. L., Kaddour Bouazza-Marouf, and G. J. S. Taylor. "Automated surgical screwdriver: automated screw placement." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 222.5 (2008): 817-827.
[3] Yadav, Sumit, et al. "Microdamage of the cortical bone during mini-implant insertion with self-drilling and self-tapping techniques: a randomized controlled trial." American Journal of Orthodontics and Dentofacial Orthopedics 141.5 (2012): 538-546.
[4] M. T. Hillery, I. Shuaib, Temperature Effects in the Drilling of Human and Bovine Bone, Journal of Materials Processing Technology, Vol. 92-93, pp.302-308, 1999.
[5] Natali C, Ingle P, Dowell J. Orthopedic bone drills-can they be improved J Bone Joint Surge Br 1996;78-B:352–7.
[6] Augustin, G., Zigman, T., Davila, S., Udilljak, T., Staroveski, T., Brezak, D., Babic, S., 2012, “Cortical Bone Drilling and Thermal Osteonecrosis,” ClinBiomech., 27(4), pp. 313–325.
[7] Wang, Y., Gong, H., Fang, F. Z., Ni, H. Kinematic view of the cutting mechanism of rotary ultrasonic machining by using spiral cutting tools. The International Journal of Advanced Manufacturing Technology 2015 1-14
[8] Shakouri, Ehsan & Haghighi Hassanalideh, Hossein & Gholampour, Seifollah. (2017). Experimental investigation of temperature rise in bone drilling with cooling: A comparison between modes of without cooling, internal gas cooling, and external liquid cooling. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 232. 095441191774294. 10.1177/0954411917742944.
[9] Gholampour, S., Shakouri, E., Haghighi Hassanalideh, H., (2018) Effect of Drilling Direction and Depth on Thermal Necrosis during Tibia Drilling: An in vitro Study. technology and healthcare, (in press).
[10] Alam K, Mitrofanov AV, Silberschmidt VV. Measurements of surface roughness in conventional and ultrasonically assisted bone drilling. Am J Biomed Sci. 2009;1(4):312-20.
[11] Alam K, Silberschmidt VV. Analysis of temperature in conventional and ultrasonically-assisted drilling of cortical bone with infrared thermography. Technology and Health Care. 2014 Jan 1;22(2):243-52.
[12] Alam K, Mitrofanov AV, Silberschmidt VV. Experimental investigations of forces and torque in conventional and ultrasonically-assisted drilling of cortical bone. Medical Engineering and Physics. 2011 Mar 1;33(2):234-9.
[13] Shakouri E, Sadeghi MH, Karafi MR, Maerefat M, Farzin M. An in vitro study of thermal necrosis in ultrasonic-assisted drilling of bone. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 2015 Feb;229(2):137-49.
[14] Singh G, Jain V, Gupta D. Comparative study for surface topography of bone drilling using conventional drilling and loose abrasive machining. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 2015 Mar;229(3):225-31.
[15] Li Z, Yang D, Hao W, Wu S, Ye Y, Chen Z, Li X. Ultrasonic vibration-assisted micro-hole forming on skull. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2017 Dec;231(14):2447-57.
[16] Alam, K., Mitrofanov, A. V., Baker, M., & Silberschmidt, V. V. (2009). Measurements of surface roughness in conventional and ultrasonically-assisted bone drilling. American Journal of Biomedical Sciences, 1(4), 312–320.
[17] Liao, Y. S., Chen, Y. C., Lin, H. M. Feasibility study of the ultrasonic vibration assisted drilling of Inconel superalloy. International Journal of Machine Tools and Manufacture 2007 47(12), 1988-1996.
[18] Khademi, V., Akbari, J., Farahmand, F. Ultrasonic Assisted Drilling of Bone. International Journal of Advanced Design and Manufacturing Technology, 2008; 1(4).