[Bipolar hip hemiarthroplasty].

Purpose Of The Study: The femoral head of a bipolar hip prosthesis (BHP) consists of a steel outer shell and polyethylene liner with an inner steel head moving inside. In this study, indications for and advantages of this endoprosthesis are evaluated.

Material And Methods: The author presents indications and the surgical technique on a group of 79 patients, mostly physically active women aged 70 to 80 years.

[Results of acetabular reconstruction with solid bone graft in primary and revision hip arthroplasty].

Purpose Of The Study: To evaluate the results of acetabular reconstruction in total hip replacement and to compare them in view of the use of autologous or allogenic solid bone grafts.

Material And Methods: The author evaluates a group of 48 total hip replacements carried out in the years 1990-1999, in which solid bone graft was used for reconstruction of an insufficient acetabulum. In 25 hips, the patient's own femoral head was used in primary surgery and, in 23 hips, a frozen femoral head from a tissue bank was used in revision arthroplasty.

[The Beznoska uncemented acetabular cup in hip joint arthroplasty].

Purpose Of The Study: To present the results of a trial of the non-cemented Beznoska cup.

Material: During the period from 1993 to 1997, a total of 43 Beznoska cups were implanted in 40 patients, 17 men and 23 women, with the average age of 61 and 65 years, respectively. Primary hip arthritis was the most frequent indication for arthroplasty.