Journal of Medical and Biological Engineering

, Volume 38, Issue 2, pp 236–243 | Cite as

Experimental Study on the Effect of Point Angle on Force and Temperature in Ultrasonically Assisted Bone Drilling

  • Khurshid Alam
  • Mojtaba Ghodsi
  • Abdullah Al-Shabibi
  • Vadim Silberschmidt
Original Article


Drilling of bone is a common surgical procedure in orthopedics to produce holes for screw insertion. The force and temperature rise in bone drilling are two important factors affecting the outcome of the process. The present work attempts to investigate the effect of drill point angle on the level of force and temperature in bone in the presence of ultrasonic vibrations imposed on the drill along the drilling direction. The effect of drill speed on the drilling force and bone temperature was studied using two types of drills with different point angles. The influence of a range of ultrasonic frequencies and amplitudes of vibrations on drilling force, torque and surface temperature of bone was also investigated. The drilling force and bone temperature were found to be strongly influenced by the drill point angle in the presence of ultrasonic vibrations. The drill with larger point angle caused more force and temperature compared to the drill with smaller point angle. Ultrasonic frequency above 15 kHz was observed to produce more temperature in bone for both types of drill geometries. This study found drill with smaller point angle favorable for safe and efficient drilling in bone.


Orthopedics Bone drilling Drilling force Bone temperature Ultrasonic drilling 


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Copyright information

© Taiwanese Society of Biomedical Engineering 2017

Authors and Affiliations

  • Khurshid Alam
    • 1
  • Mojtaba Ghodsi
    • 1
  • Abdullah Al-Shabibi
    • 1
  • Vadim Silberschmidt
    • 2
  1. 1.Department of Mechanical and Industrial Engineering, College of EngineeringSultan Qaboos UniversityAl-KhoudSultanate of Oman
  2. 2.Wolfson School of Mechanical, Electrical and Manufacturing EngineeringLoughborough UniversityLoughboroughUK

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