Osteointegrative Coating Solutions for PEEK-based Implants

    • Reference:
    • Zappini, G. "Osteointegrative Coating Colutions for PEEK-based Implants." Transactions of the First International PEEK Meeting, Philadelphia, PA, April 25-26, 2013.
    • Keywords:
    • Plasma Spray, Titanium, Eurocoating
    • Permissions:
    • This presentation is available with the permission of Dr. Zappini and his co-authors.

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The use of PEEK is notably increasing in the biomedical field, especially in spine applications, due to its biocompatibility, radiolucency and favorable stiffness values. However, the material itself offers limited possibility for direct bone anchorage. In order to improve the stability of the bone-implant interface, PEEK implants can be coated with Titanium (Ti) or Hydroxyapatite (HA) via Plasma Spray (PS) processes. This approach is challenging because PEEK is a material susceptible to degradation when exposed to high temperatures as those typically developed during PS, yet in the past years low thickness coatings could be successfully developed.1,2 Nevertheless, the porosity and roughness of these coatings are relatively low when compared with the state of the art represented by the highly porous coatings found on metallic substrates. Aim of this work is to show a further development step allowing highly porous Ti coatings
application also on PEEK.