Computer modelling of the heat flow in surgical cement during endoprosthesoplasty

• Autorzy: Okrajni J. , Plaza M. , Ziemba S.
• Konferencja: 12th International Scientific Conference CAM3S'2006, 27-30th November 2006, Gliwice-Zakopane
• Języki publikacji: EN

Abstrakty

EN

Purpose: The problem of the modelling of the surgical cement behavior during implantation has been presented in the paper. The purpose was to find the proper model describing the temperature fields in the bone during the surgery treatment. Design/methodology/approach: Computer modelling has been used to predict the temperature influence on the bone tissue during polymerization process. Findings: During orthopaedic surgical procedures with the use of methyl polymethacrylate surgical cements, the temperature sometimes reaches 80 degrees centigrade, which causes atrophy of the bone tissue. The process occurs locally, since it depends on both the amount of polymerization heat generated during the reaction and on the heat exchange conditions at cement-bone tissue and bone cement - implant boundaries. Striving to better understand the above-mentioned phenomena through a model approach, models were developed under the study to calculate temperature distributions in the bone and in implant components during the procedure of endoprosthesis stem implantation. Calculations were made for different cement layer thickness variants and for different amount of cement concentrated around the top of the stem. The characteristics of temperature changes with time in different points of the bone and cement have been determined and temperature distributions in bone and cement for selected instants of time have been worked out. Practical implications: The analysis carried out makes it possible to determine the location of areas most threatened with an adverse effect of an elevated temperature. In each case, they are located in the vicinity of the top of the endoprosthesis stem. These conclusion together with obtained data should be important for the surgeons during surgical operation. Originality/value: The work presents the own method of heat flow modelling during the polymerization of surgical cements. The results of the own method of the heat source characteristic description has been shown as well.

Słowa kluczowe

EN

computer modelling; biomaterials; surgical cement; reliability; toxicity

PL

modelowanie komputerowe; biomateriały; cement chirurgiczny; niezawodność; toksyczność

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 20, nr 1-2
• Strony: 311--314
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Okrajni J.

autor

Plaza M.

autor

Ziemba S.

• Department of Mechanics of Materials, Silesian University of Technology, ul. Krasińskiego 8, 41-403 Katowice, Poland,

Bibliografia

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