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3. Alumina prosthesis components
Introduced in 1965, alumina has the triple advantage of being readily available, having good mechanical properties and being biocompatible.
The first developments made on this basis consist in strengthening the material by optimizing it (optimization of purity, density, grain size... to eliminate defects).
3.1 Introduction to alumina
Alumina is one of the most widely used technical ceramics, thanks to a combination of properties that include hardness (up to 20 GPa), stiffness (Young's modulus up to 400 GPa), breaking strength (breaking stress up to 650 MPa), chemical inertia, refractoriness and lightness (density around 4).
It can exist in various crystallographic phases, but the only phase stable at the temperatures...
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Alumina prosthesis components
Components for yttriated zirconia prostheses
Bibliography
Websites
Numbers of ceramic prostheses implanted http://www.ceramtec.com/ceramic-materials/biolox/delta/ , accessed May 27, 2014.
Standards and norms
- Implants for surgery – Ceramic materials based on yttria-stabilized tetragonal zirconia (Y-TZP) - ISO 13356 - 2008
- Surgical implants – Partial and total hip joint prostheses – Part 2: Joint surfaces made of metallic, ceramic and plastic materials - ISO 7206-2 - 2011
- Surgical implants – Ceramic products – Part 1: High-purity alumina-based ceramic products - ISO 6474-1 - 2010
- Surgical implants –...
Patents
Reinforced porous coating. EP1924301 A1
Coating for dental applications. WO2010145822 A1
Directory
Manufacturers of ceramics for orthopedics (non-exhaustive list)
Kyocera (Bioceram AZ209, Al190 ) http://kyocera-md.com/technology/material/index.html
Ceramtec (Biolox® Delta, Biolox® Forte ) http://www.ceramtec.com/
...Statistical and economic data
Haute Autorité de Santé. Revision of generic descriptions for the list of reimbursable products and services "hip joint replacements" 2007 http://www.has-sante.fr
Haute Autorité de Santé. Revision of generic descriptions on the list of reimbursable products and services: knee joint implants. 2012
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