<qa>  How many European hips were enrolled in the Austrian site?This post-market clinical follow-up study was designed to compare hip replacement outcomes of the European Hip against 3 controls Omniflex, Zweymuller, and Spotorno, however Omniflex did not end up being used. The first patient had surgery on February 18, 2000 and the final patient had surgery on September 2, 2005. There were 317 subjects consented but only 301 had hip replacement surgery subjects received: 220 European hips, 33 Zweymuller, and 48 Spotorno. The study took place at three sites. Each site used their standard device as the control. The Austrian site enrolled 69 European hips and 33 Zweymuller hips. 92 European hips and 48 Spotorno hips were enrolled in Germany. Finally, the site in Italy enrolled 59 European hips. Although the study protocol intended collecting DEXA and RSA outcomes, the data collected by the sites did not include these outcomes. 