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Thermal osteonecrosis and bone drilling parameters revisited
Goran Augustin1, Slavko Davila, Kristijan Mihoci
1Department of Surgery, University Hospital Center Zagreb, Kispatićeva 12, 10000 Zagreb, Croatia. Augustin.goran@gmail.com
Archives of Orthopaedic and Trauma Surgery
|September 1, 2007
Summary
External irrigation is crucial for minimizing bone temperature increase during drilling, preventing osteonecrosis. Optimal drilling parameters, including feed rate and drill speed, are essential for safe bone surgery.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Materials Science
Background:
- Bone drilling can elevate temperatures above 47°C, risking osteonecrosis and implant fixation failure.
- Understanding thermal effects is critical for preventing surgical complications.
Purpose of the Study:
- To identify optimal bone drilling parameters to minimize temperature increase.
- To prevent irreversible bone damage and ensure implant stability.
Main Methods:
- Evaluated the impact of drill diameter, speed, feed rate, and point angle on bone temperature.
- Utilized external irrigation with 26°C water during drilling experiments.
Main Results:
- External irrigation effectively maintained bone temperature below the critical 47°C threshold.
- Higher drill speeds and larger diameters increased bone temperature.
- Increased feed rate correlated with lower temperature increases.
Conclusions:
- External irrigation is the most significant factor in controlling bone temperature during drilling.
- Drill speed and diameter are key parameters influencing thermal response.
- Feed rate positively impacts thermal management in bone drilling procedures.
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