Department of Mechanical and Industrial Engineering, Sultan Qaboos University, P.O. Box 33, Al-Khoud 123, Sultanate of Oman.
Orthopaedic Department, Sohar Hospital, Sultanate of Oman.
Med Eng Phys. 2019 May;67:78-87. doi: 10.1016/j.medengphy.2019.03.013. Epub 2019 Apr 10.
Drilling is a common surgical procedure for fracture treatment and reconstruction in multiple surgical fields, including orthopaedics, neurology, and dentistry. Drilling delicate tissue (such as bone) with a hard metallic tool is considered notorious for inducing mechanical and thermal damage, which can adversely affect osseointegration and may weaken the bond between the bone and implant, or other fixative devices anchoring the bone. The aim of this study is to explore the benefits of vibrational drilling (VD) in overcoming the complications associated with conventional drilling (CD). Drilling tests were performed on fresh cortical bone with the intention of investigating the effect of a range of frequencies, in combination with drilling speed and feed rate, on biological damage around the drilling region using histological sections of skeletally mature bone. The study examined the most influential factors and optimal combination of parameters for safe and efficient drilling in bone. Results from Taguchi grey relational analysis showed that a lower drilling speed and feed rate combined with a frequency of 20 kHz were favourable parameters for safe drilling in bone. Accordingly, VD using controlled parameters may be an alternative to CD in bone surgical procedures.
钻孔是一种常见的外科手术程序，用于治疗和重建多个外科领域的骨折，包括骨科、神经科和牙科。用坚硬的金属工具钻取精细的组织（如骨骼）被认为会引起严重的机械和热损伤，这可能会对骨整合产生不利影响，并可能削弱骨与植入物或其他固定装置之间的结合。本研究旨在探讨振动钻孔（VD）在克服传统钻孔（CD）相关并发症方面的优势。在新鲜的皮质骨上进行了钻孔测试，目的是通过骨骼成熟骨的组织学切片研究一系列频率与钻孔速度和进给速度相结合对钻孔区域周围生物损伤的影响。该研究检查了在骨中进行安全高效钻孔的最具影响力的因素和最佳参数组合。田口灰色关联分析的结果表明，较低的钻孔速度和进给速度与 20 kHz 的频率相结合是在骨中安全钻孔的有利参数。因此，使用受控参数的 VD 可能是骨外科手术中 CD 的替代方法。
