The influence of mechanical factors in the biological adaptation process of implants

• Autorzy: Okrajni J. , Toborek J. , Cybo J.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the analysis of mechanical properties of implants basing on the finite elements methods (FEM) and experimental techniques of the mechanics of materials. Models of normal femoral bone and hip joint after the endoprosthesis implantation have been worked out. Stress patterns in these biomechanical systems have been determined. Mechanical material properties of polyethylene endoprosthesis cup have been determined as well. The results indicate that exposure to X-rays and ageing leads to hardening of the cups. The influence of geometrical and material feactures of stems and cups of endoprosthesis of hip joint on its adaptation process in the human organism has been discussed. Important mechanical properties of implants, which influence their behaviour in the human organism, have been determined. It has been stated that prediction of biological properties and behaviour of new implants in human body could be based on methods applied in mechanics of materials.

Słowa kluczowe

EN

endoprosthesis; hip joint; material properties; modelling

PL

endoproteza; staw biodrowy; właściwości materiału; modelowanie

• Wydawca: University of Silesia, Institute of Informatics, Computer Systems Department
• Czasopismo: Journal of Medical Informatics & Technologies
• Rocznik: 2001
• Tom: Vol. 2, Part. 2
• Strony: MT3--MT7
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Okrajni J.

• Silesian University of Technology, Gliwice

autor

Toborek J.

• Public Hospital in Siemianowice Śląskie

autor

Cybo J.

• Silesian University, Katowice

Bibliografia

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• [2] KUSZ D., OKRAJNI J., Evaluation of the influence of effort state in femoral joint after implantaion Weller's endoprothesis upon changes occurring in cone tissue in correlation with densitometric examination. Polish Orthopaedics Surgery, 1997; 62(3), pp. 225-232 (in Polish).
• [3] KUSZ D., TOKAROWSKI A., BOŻEK M., JURKIEWICZ A., KALETA M., SKABA T.: examination in cement alloplastics of hip joint Polish Orthopaedics Surgery, 1996; 61(supl. 3A), pp. 83-87 (in Polish).
• [4] KUSZ D., OKRAJNI J., DOMAGAŁA-PASEK A., Modem evaluation possibilities of mineral changes in femoral joint after total alloplastics of a hip joint. Annales Academiae Medicae Silesiensis (supl.29), Katowice 1999, pp.81 - 90 (in Polish).
• [5] Gruen T.A, McMEICE G.M., AMSTUTZ H.C., "Modes of failure" of cemented stem-type femoral components. Clin. Orthop., 1979, pp.17-27.
• [6] OKRAJNI J., KUSZ D., ŻMUDZKI J., Biological and mechanical conditioning of adaptation processes in acetabular bone tissue. Annales Academiae Medicae Silesiensis (supl.29), Katowice 1999, pp.1 19-127 (in Polish).
• [7] HUISKES R., Van RIETBERGEN B., Preclinical testing of total hip stem. Clin. Orthop., 1995; 319, pp. 64-76.
• [8] BĘDZIŃSKI R., Engineering Biomechanics. Chosen issues. Print of Wroclaw University of Technology, Wrocław 1997 (in Polish)
• [9] OKRAJNI J., MYALSKI J., TOBOREK J., KUSZ D., CYBO J., DUDA P., Forecasting changes in polyethylene properties of polyethylene cup component of a hip joint endoprothesis. Annales Academiae Medicae Silesiensis (supl.29), Katowice 1999, pp.128-133 (in Polish).
• [10] OTWINOWSKI J., PAWELEC A., The change of polyethylene structure crystal part in removed cups of Weller's endoprothesis. Polish Orthopaedics Surgery, 1994; 59(supl. 3), pp. 283-286 (in Polish).