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Atomic transfers between implanted bioceramics and tissues in orthopaedics surgery

Abstract : We study transfers of ions and debris from bioceramics implanted in bone sites. A contamination of surrounding tissues may play a major role in aseptic loosening of the implant. For these reasons, bioceramics require studies of biocompatibility and biofunctionality . So, in addition to in vitro studies of bioceramics, it is essential to implant them in vivo to know body reactions. We measured the concentration of mineral elements at different time intervals after implantation over a whole cross-section. We found a discontinuity of the mineral elements (Ca, P, Sr, Zn, Fe) at the interface between the implant and the receiver. The osseous attack is not global but, on the contrary, centripetal. Moreover, the fit of the concentration time course indicates that the kinetics of ossification is different for each atomic element and characterizes a distinct biological phenomenon
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http://hal.in2p3.fr/in2p3-00023281
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Submitted on : Monday, November 8, 2004 - 5:52:29 PM
Last modification on : Thursday, December 16, 2021 - 2:10:23 PM
Long-term archiving on: : Thursday, April 1, 2010 - 3:38:39 PM

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J.L. Irigaray, E. Chassot, G. Guibert, Edouard Jallot. Atomic transfers between implanted bioceramics and tissues in orthopaedics surgery. 9th Seminar and Meeting on Ceramics Cells and Tissues, Sep 2004, Faenza, Italy. pp.1-5. ⟨in2p3-00023281⟩

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