[Numerical studies of the effect of prosthetic implants on the strain energy density distribution in the femur].
In this study the distribution of the strain energy density (SED) in the natural femur as well as changes of it due to the implantation of an artificial hip joint has been investigated. Because of recently published theoretical considerations the volume related SED was used to describe the respective biomechanical loading situation completely. By means of parameter variation different load cases were simulated. The calculated SED-distributions were compared with the respective results of the natural femur. Thus, the known reasons of failures of hip joint prostheses has been proofed numerical. It was shown that the SED is a suitable mechanical parameter to simulate bone remodeling after hip joint replacement.
Institut für Bioprozess- und Analysenmesstechnik e. V., Rosenhof, Heiligenstadt.
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Liefeith
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Kaufhold
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Rost
D001696:Biomechanical Phenomena; D003198:Computer Simulation; D019544:Equipment Failure Analysis; D005269:Femur / Q000503:physiopathology* / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007091:Image Processing, Computer-Assisted; D011183:Postoperative Complications / Q000503:physiopathology*; D016474:Weight-Bearing / Q000502:physiology