"Mean surface roughness (Ra) of femoral and tibial components pre-test, after 1MC tested in clean lubricant, 1MC tested in lubricant with porcine bone particles and 1MC in lubricant with PMMA cement (Table 2)"				
				
Femoral components				
	pre-test	clean lubricant	porcine bone particles	PMMA cement particles
PEEK 1	0.022575	0.11205	0.363725	0.17085
PEEK 2	0.0197375	0.1548375	0.458775	0.312375
PEEK 3	0.020775	0.126125	0.3712	0.2189875
CoCr 1	0.0231625	0.0739625	0.0245125	0.124325
CoCr 2	0.018225	0.017725	0.0268	0.1240625
CoCr 3	0.0248375	0.0258875	0.0290375	0.1245875
				
Tibial components				
	pre-test	clean lubricant	porcine bone particles	PMMA cement particles
PEEK 1	1.0994125	0.595675	6.8094125	6.0175
PEEK 2	1.078375	0.7049875	6.1084	13.8070875
PEEK 3	1.0949	0.6799625	7.0158	8.0325
CoCr 1	1.0358125	0.4463375	5.9122	13.7918625
CoCr 2	1.07735	0.4743375	9.6127625	8.57105
CoCr 3	1.0736125	0.650771429	9.8019875	15.343075