A rolling-gliding wear simulator for the investigation of tribological material pairings for application in total knee arthroplasty

Table 1 Volumetric wear rate of different material pairings

Tribological Pairing	Number	Volumetric Wear Rate [mm³/1 Mio Cycles]
Counter-Body-Base-Plate	--	Cylindrical Counter-Body	Base-Plate
CoCr-UHMWPE	TP1	--	2.5398
ceramic-UHMWPE	TP2	--	0.4060
ceramic-ceramic	TP3/4	0.1951	0.1922
ceramic-ceramic ground (Ra 825 nm)	TP5	0.0788	0.0763
ceramic-ceramic polished (Ra 382 nm)	TP6	0.0029	0.0559
ceramic-ceramic polished (Ra 52 nm)	TP7	0.1271	0.1602
ceramic-ceramic curved geometry	TP8	0.0557	0.0664

Total volumetric wear rate after 3 million cycles for different tribological pairings tested in the rolling-gliding wear simulator. No data is listed when the weight loss was too small to measure with our scale.

ISSN: 1475-925X