Failure rate of cemented and uncemented total hip replacements: register study of combined Nordic database of four nations

To assess the failure rate of cemented, uncemented, hybrid, and reverse hybrid total hip replacements in patients aged 55 years or older.Register study.Nordic Arthroplasty Register Association database (combined data from Sweden, Norway, Denmark, and Finland).347,899 total hip replacements performed during 1995-2011.Probability of implant survival (Kaplan-Meier analysis) along with implant survival with revision for any reason as endpoint (Cox...