Biomechanical evaluation of vertebro- and kyphoplasty under cyclic loading. (Abstract) - presented at: The Aging Spine - Swiss Spine Society Basel 2002. - Wilke,H.J.; Mehnert,U.; Boszczyk,B.; Bierschneider,M.; Jaksche,H.; Claes,L.E. (Eur Spine J, 2002)