[1] Leiden Univ, Med Ctr, Dept Orthopaed, Leiden, Netherlands
[2] Delft Univ Technol, Dept Mediamat, Med Visualizat Grp, NL-2600 AA Delft, Netherlands
[3] Leiden Univ Med Ctr, Dept Radiol, Leiden, Netherlands
[4] Delft Univ Technol, Fac 3ME, Dept Biomech Engn, Delft, Netherlands