Alam K, Ahmed Naseer, Silberschmidt V V
Department of Mechanical and Industrial Engineering, College of Engineering, Sultan Qaboos University, Sultanate of Oman.
Department of Mechanical Engineering, College of Engineering, Taibah University, Al Madina Al Munawara, Kingdom of Saudi Arabia.
Technol Health Care. 2014 Jan 1;22(2):253-62. doi: 10.3233/THC-140814.
Bone drilling is a well-known surgical procedure in orthopaedics and dentistry for fracture treatment and reconstruction. Advanced understanding of the mechanics of the drill-bone interaction is necessary to overcome challenges associated with the process and related postoperative complications.
The aim of this study was to explore the benefits of a novel drilling technique, ultrasonically-assisted drilling (UAD), and its possible utilization in orthopaedic surgeries.
The study was performed by conducting experiments to understand the basic mechanics of the drilling process using high speed filming of the drilling zone followed by measurements to quantify thrust force, surface roughness and cracking of the bone near the immediate vicinity of the hole with and without ultrasonic assistance.
Compared to the spiral chips produced during conventional drilling (CD), UAD was found to break the chips in small pieces which facilitated their fast evacuation from the cutting region. In UAD, lower drilling force and better surface roughness was measured in drilling in the radial and longitudinal axis of the bone. UAD produced crack-free holes which will enhance postoperative performance of fixative devices anchoring the bone.
UAD may be used as a possible substitute for CD in orthopaedic clinics.
骨钻孔是骨科和牙科用于骨折治疗与重建的一种广为人知的外科手术。深入了解钻骨相互作用的力学原理对于克服该过程中遇到的挑战以及相关术后并发症至关重要。
本研究旨在探讨一种新型钻孔技术——超声辅助钻孔（UAD）的优势及其在骨科手术中的潜在应用。
通过实验来开展本研究，利用高速拍摄钻孔区域，随后进行测量，以量化在有和没有超声辅助的情况下，孔周边骨的推力、表面粗糙度和裂纹，从而了解钻孔过程的基本力学原理。
与传统钻孔（CD）过程中产生的螺旋状切屑相比，发现超声辅助钻孔会将切屑破碎成小块，这有利于切屑快速从切削区域排出。在超声辅助钻孔中，在骨的径向和纵向钻孔时测量到较低的钻孔力和更好的表面粗糙度。超声辅助钻孔产生无裂纹的孔，这将提高固定骨的固定装置的术后性能。
在骨科临床中，超声辅助钻孔可能可作为传统钻孔的一种替代方法。
