[Initial experience with implantation of a cemented endoprosthesis.].

The authors present their experience with the use of a cemented endoprosthesis of the hip joint Saphir I. During a three-year period they implanted at the Orthopaedic department of the Central Military Hospital in Prague 82 of these endoprostheses with very good mediumterm results. In the first part of the paper they deal with the description of the implant and the range of sizes. They emphasize the satisfactory technical solution of the implant and instruments and the easy technique of implantation. In view of the minimal number of complications and the reasonable price they envisage the use this endoprosthesis in elderly but perspective patients where with regard to osteoporosis and other factors the use of non-cemented endoprosthesis of the hip joint is not indicated. Key words: cemented endoprosthesis of the hip joint, complications of endoprostheses, bone cement.