This is a retrospective/prospective study evaluating the clinical and radiographic outcome of total hip arthroplasty (THA) performed using Accolade femoral stem in a consecutive group of patients. All patients eligible for inclusion will be identified. The investigators hypothesize that the outcome of THA performed using Accolade femoral stem is equal or superior to historical survivorship of THA using other types of collarless, proximally coated, tapered stems.