Stepwise introduction of a bone-conserving osseointegrated hip arthroplasty using RSA and a randomised study. I. Preliminary investigations - 52 patients followed for 3 years. - Carlsson,L.V.; Albrektsson,B.EJ.; Albrektsson,B.G.; Albrektsson,T.O.; Jacobsson,C.M.; Macdonald,W.; Regner,L.; Röstlund,T.; Weidenhielm,L.R. (Acta Orthopaedica, 2006)