A Haptic Enabled Multimodal Pre-operative Planner for Hip Arthroplasty. - Silvano Imboden; Marco Petrone; Paolo Quadrani; Cinzia Zannoni; R. Mayoral; Gordon Clapworthy; Debora Testi; Marco Viceconti; D. Neiberg; Nikolaos G. Tsagarakis; Darwin G. Caldwell (WHC, 2005)