Third-Body-Wear as a Risk Factor in Joint Endoprosthetics
It is well known, that wear of the articulation partners of hip joint prostheses affect the long-term durability of the implants in vivo. The wear is dramatically increased if particles in the artificial joint gap act as third body. Those particles can also occur after a fracture of a ceramic component. Until now there are some different guidelines which coupling (metal-polyethylene, ceramic-polyethylene, ceramic-ceramic) should be used for revision. We tested and compared the wear behaviour of a ceramic-PE-pairing and a ceramic-ceramic-pairing under third body wear conditions with alumina-particles in a hip joint simulator.
Panjian Li, Kai Zhang and Clifford W. Colwell, Jr.
T. Oberbach et al., "Third-Body-Wear as a Risk Factor in Joint Endoprosthetics", Key Engineering Materials, Vols. 284-286, pp. 995-998, 2005