Irregular rotation and shift of computer-assisted femoral stem implantation in THA - an experimental study. - Pellengahr,C.; Huber,A.; Maier,M.; Müller,P.E.; Zysk,S.; Troullier,H.; Durr,H.R.; Lienemann,A.; Jansson,V.; Refior,H.J. (Arch Orthop Trauma Surg, 2003)