Kim YH, et al. - This study was undertaken to ascertain the long-term (up to 34 years) survival rate of the retained cementless anatomic femoral stem in patients < 50 years of age. Researchers conducted isolated cup revision with retaining primary cementless anatomic femoral stem in 206 patients (149 men and 57 women). They monitored clinical and radiographic results at each follow-up. They conducted CT scans in all hips to determine the prevalence of osteolysis at the latest follow-up. It was shown that in young active patients, the rate of aseptic loosening of already osseointegrated femoral stem remains low with ceramic-on-ceramic bearing.