[Experience with the cementless hip prosthesis, with special reference to the implantation of prosthesis stems]

Authors report on their experiences gained during 7 years with 102 PM (Aesculap) and 76 Etropal cementless hip endoprosthesis and with the implantation without sticking of 264 standard prosthesis stems. They explain their results with bone rebuilding that can be certified also by Roentgenograms. The lack of success in a few per cent of the cases can be explained mainly by technical insufficience.