A Thermal and Biological Analysis of Bone Drilling

Maziar Aghvami, John B. Brunski, U. Serdar Tulu, Chih Hao Chen, Jill A. Helms

Research output: Contribution to journalJournal Article peer-review

54 Scopus citations

Abstract

With the introduction of high-speed cutting tools, clinicians have recognized the potential for thermal damage to the material being cut. Here, we developed a mathematical model of heat transfer caused by drilling bones of different densities and validated it with respect to experimentally measured temperatures in bone. We then coupled these computational results with a biological assessment of cell death following osteotomy site preparation. Parameters under clinical control, e.g., drill diameter, rotational speed, and irrigation, along with patient-specific variables such as bone density were evaluated in order to understand their contributions to thermal damage. Predictions from our models provide insights into temperatures and thresholds that cause osteocyte death and that can ultimately compromise stability of an implant.

Original languageEnglish
Article number101010
JournalJournal of Biomechanical Engineering
Volume140
Issue number10
DOIs
StatePublished - 01 10 2018

Bibliographical note

Publisher Copyright:
Copyright © 2018 by ASME.

Keywords

  • Bone
  • Drill
  • Heat
  • Model
  • Osteotomy

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