Journal
MEDICAL ENGINEERING & PHYSICS
Volume 33, Issue 2, Pages 234-239Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.medengphy.2010.10.003
Keywords
Bone drilling; Thrust force; Drilling torque; Orthopaedics; Ultrasonic vibration; Experimental methods
Categories
Funding
- Engineering and Physical Sciences Research Council [EP/G048886/1] Funding Source: researchfish
- EPSRC [EP/G048886/1] Funding Source: UKRI
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Bone drilling is widely used in orthopaedics and surgery; it is a technically demanding surgical procedure. Recent technological improvements in this area are focused on efforts to reduce forces in bone drilling. This study focuses on forces and a torque required for conventional and ultrasonically-assisted tool penetration into fresh bovine cortical bone. Drilling tests were performed with two drilling techniques, and the influence of drilling speed, feed rate and parameters of ultrasonic vibration on the forces and torque was studied. Ultrasonically-assisted drilling (UAD) was found to reduce a drilling thrust force and torque compared to conventional drilling (CD). The mechanism behind lower levels of forces and torque was explored, using high-speed filming of a drill-bone interaction zone, and was linked to the chip shape and character of its formation. It is expected that UAD will produce holes with minimal effort and avoid unnecessary damage and accompanying pain during the incision. (C) 2010 IPEM. Published by Elsevier Ltd. All rights reserved.
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