Kim YH, et al. - In this study, the long-term (up to 34 years) survival rate of the retained cementless anatomic femoral stem was ascertained 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. Computed tomography scans were carried out in all hips to ascertain the prevalence of osteolysis at the latest follow-up. The data revealed that the rate of aseptic loosening of already osseointegrated femoral stem remains low with ceramic-on-ceramic bearing in young active patients.