TY - JOUR
T1 - Experimental investigations of forces and torque in conventional and ultrasonically-assisted drilling of cortical bone
AU - Alam, K.
AU - Mitrofanov, A. V.
AU - Silberschmidt, V. V.
PY - 2011/3
Y1 - 2011/3
N2 - 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.
AB - 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.
KW - Bone drilling
KW - Drilling torque
KW - Experimental methods
KW - Orthopaedics
KW - Thrust force
KW - Ultrasonic vibration
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U2 - 10.1016/j.medengphy.2010.10.003
DO - 10.1016/j.medengphy.2010.10.003
M3 - Article
C2 - 21044856
AN - SCOPUS:79951775233
SN - 1350-4533
VL - 33
SP - 234
EP - 239
JO - Medical Engineering and Physics
JF - Medical Engineering and Physics
IS - 2
ER -