Wear Factors of UHMWPE pins after 0.5MC wear simulation, data relating to Figure 5. PGCS: Pharmaceutical grade of calcium sulfate: Stimulan (Biocomposites Ltd, Keele) MGCS: Medical grade of calcium sulfate: Osteoset (Wright Medical Technology, TN, USA) PMMA: SmartSet GMV Gentamicin bone cement (DePuy Synthes, IN, USA) Sample Negative control Positive control PGCS MGCS PMMA 1 2.62E-07 6.74E-07 1.85E-07 2.34E-07 2.06E-07 2 2.21E-07 1.23E-06 2.48E-07 2.51E-07 2.72E-07 3 2.38E-07 9.41E-07 2.56E-07 2.21E-07 2.12E-07 4 2.16E-07 7.88E-08 1.92E-07