Rapid Prototyping for In Vitro Knee Rig Investigations of Prosthetized Knee Biomechanics: Comparison with Cobalt-Chromium Alloy Implant Material

Table 5

Load-dependent friction coefficient of UHMWPE against CoCr-alloy compared to references; the coefficients of friction were calculated from the determined exponential formulas of publications.

Pressure	Present study	Saikko [30]	Wang et al. [31]
3.1 MPa	0.099	0.158	0.083
4.7 MPa	0.093	0.119	0.063
6.2 MPa	0.080	0.099	0.052
7.8 MPa	0.073	0.084	0.044
9.4 MPa	0.065	0.074	0.039