Experimental Measurement of Temperature Gradient during Bone Drilling in Cameroon, Sub-Sahara Africa

Jean Gustave Tsiagadigui, Vyek Yaya, Benoit Ndiwe, Ebanda Fabien Betene, Ebenezer Njeugna and Maurice Aurelien Sosso
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Ebenezer Njeugna: Department of Surgery and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Cameroon
Maurice Aurelien Sosso: Mechanical Laboratory of ENSET, University of Douala, Cameroon

Orthopedics and Rheumatology Open Access Journals, 2020, vol. 15, issue 4, 127-133

Abstract: The objective of this work was to evaluate thermal conductivity of bone during drilling. More specifically, this involved measuring temperature at varying distances from the drilling point, plotting the temperature evolution over time and as function of the distance to the drilling point and determining the critical areas of temperature peaks harmful to bone tissue. The cortical bones of one-year-old bovine were used, preserved in 9/1000 saline serum at 10°C. Temperatures were measured at varying distances from the drilling point using a multi thermometer type DT300 with a thermal probe. For each of the average values selected, three tests were carried out using 4mm diameter drill bits, for a total of 33 specimens. Temperatures ranging from 33.63 to 38.56°C were measured. The highest temperature gradients were observed at 7mm, the point closest to the drilling focus. These gradients were higher at the end of the drilling. The results of this study allowed us to conclude that the temperature gradient is more important in the vicinity and at the end of the drilling and that it decreases with the distance to the drilling point.

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Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:adp:joroaj:v:15:y:2020:i:4:p:127-133

DOI: 10.19080/OROAJ.2020.15.555924

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