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Extending the life span of orthopaedic implants: development of ceramic hip and knee prostheses with improved zirconia toughned alumina nanocomposites

Objective

Lifetime of artificial hips and knees is a serious limitation to their use, especially in relativity young and active people. The introduction of ceramics like alumina and zirconia drastically reduce the wear rate, but fracture rates of up to 1.6 % have been reported for alumina-alumina pairs due to its brittleness Additionally, problems related with the steam sterilization and hydrothermal degradation make that a zirconia-zirconia combination must be avoided. The aim of this project is to increase the life span of ceramic-ceramic knee and hip orthopedic implants to 30 years by using a zirconium toughened alumina ceramic nanocomposite with a clearly improved suitability. This material is obtained by means of a new and innovative processing technology using power / alcoxide mixtures and a pressure Casting forming technique (patent pending).

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
Address
S/n,la Corredoria S/n
33011 Oviedo
Spain

Participants (5)

CERAMICA INDUSTRIAL MONTGATINA S.A.
Spain
Address
Carretera A Tiana 191
08390 Montgat
CHEVAL FRÈRES S.A.
France
Address
Rue Des Bosquets Ecole Valentin
25045 Besancon
INSAVALOR S.A.
France
Address
20,Avenue Albert Einstein 20 Insa Lyon Bètiment 502
69621 Villeurbanne
ISTITUTO ORTOPEDICO RIZZOLI
Italy
Address
Via Di Barbiano 1-10
40136 Bologna
ORTHO CREMASCOLI SPA
Italy
Address
Via Clemente Prudenzio 14/16
20138 Milano