Wear volume (mm3) of UHMWPE tibial components at 0.115, 1 and 3 million cycles (MC). The data for each of the 6 samples at each time point has been gives as has the mean wear volume which is associated with Figure 3. Negative controls Sample 0.115 1 3 1 0.291220557 1.120985011 4.465738758 2 0.203426124 1.784796574 6.870449679 3 -0.010706638 1.069593148 6.480728051 4 0.41862955 2.607066381 11.41006424 5 0.555674518 7.754817987 15.5235546 6 0.19379015 0.557815846 4.14882227 CS-BVF Sample 0.115 1 3 1 7.392933619 9.168094218 19.51605996 2 3.10385439 5.510706638 17.07280514 3 3.37366167 7.082441113 16.11134904 4 0.708779443 1.465738758 6.799785867 5 1.381156317 3.397216274 6.129550321 6 0.676659529 4.474304069 7.482869379 Positive controls Sample 0.115 1 3 1 5.880085653 28.73340471 58.20449679 2 5.08993576 27.34582441 51.75053533 3 5.644539615 26.48072805 55.69271949 4 7.039614561 38.81691649 88.6391863 5 5.442184154 28.5856531 69.86616702 6 5.309421842 33.10171306 76.25802998 Mean wear volume mean 95% confidence limits Number of cycles Negative control CS-BVF Positive control Negative control CS-BVF Positive control 0 0 0 0 0 0 0 0.115 0.275339044 2.772840828 5.734296931 0.20622358 2.672147065 0.729338955 1 2.482512491 5.183083512 25.94266 2.810675781 2.859307596 4.896799532 3 8.149892934 12.18540328 66.73518915 4.670553644 6.312146733 14.84012223