Atomic transfers between implanted bioceramics and tissues in orthopaedics surgery

Details Atomic transfers between implanted bioceramics and tissues in orthopaedics surgery Atomic transfers between implanted bioceramics and tissues in orthopaedics surgery

2004-11-10

arxiv.org/abs/physics/0411108v1

Dans Materials for Tissues Engineering Chemistry and Microstructure, the Role for Ceramics (2004) 1-5 - Conference: 9th Semina

Physics

Biological Physics

Scientific paper

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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