Figure 1: SED-Changes after virtual stem implantation [MPa]. The different stem types (Fitmore® FB (blue), Fitmore® BS (red), Fitmore® SS (green), Ecofit Short® FB (violet), Ecofit Short® BS (petrol), Ecofit Short® SS (orange), CLS Spotorno® FB (light blue), CLS Spotorno® BS (light red) and CLS Spotorno® SS (light green)) were taken for stress analysis. Only the anatomical stem (Fitmore®) offers a reduced stress shielding effect by reducing its stiffness to a small shell (p<0.001).