structural simulation of a bone-prosthesis system of the knee joint结构模拟膝关节的bone-prosthesis系统.pdf

Sensors 2008, 8, 5897-5926; DOI: 10.3390/s8095897 OPEN ACCESS sensors ISSN 1424-8220 /sensors Article Structural Simulation of a Bone-Prosthesis System of the Knee Joint ¨ Heiko Andra , Sebastiano Battiato , Giuseppe Bilotta , Giovanni M. Farinella , Gaetano Impoco , Julia Orlik , Giovanni Russo and Aivars Zemitis ¨ ¨ Fraunhofer Institut fur Techno- und Wirtschaftsmathematik Stromungs- und Materialsimulation, Fraunhofer-Platz 1, D-67663 Kaiserslautern, Germany ` Dipartimento di Matematica e Informatica, Universita di Catania, viale A. Doria, 6, I-95125 Catania, Italy E-mails: andrae, julia.orlik, zemitis@itwm.fraunhofer.de; battiato, bilotta, gfarinella, impoco, russo@dmi.unict.it Author to whom correspondence should be addressed. Received: 14 July 2008; in revised form: 19 September 2008 / Accepted: 22 September 2008 / Published: 24 September 2008 Abstract: In surgical knee replacement, the damaged knee joint is replaced with artificial prostheses . An accurate clinical evaluation must be carried out before applying knee prosthe- ses to ensure optimal outcome from surgical operations and to reduce the probability of having long-term problems. Useful information can be inferred from estimates of the stress acting onto the bone-prosthesis system of the knee joint. This information can be exploited to tai- lor the pr