Influence of the type of stem and its fixation on revision and immediate postoperative mortality in elective total hip arthroplasty.

In patients aged > 80 years, uncemented and short stems had significantly higher revision rates compared with cemented and collared stems, especially in females. The design of the stem and type of fixation have to be analyzed in more detail than only considering cemented and uncemented fixation, in order to further improve the success of THA.