Dislocation, Hip

The aim of this study is to the compare clinical outcomes of patients undergoing a revision total hip arthroplasty (THA) with the use of a dual mobility bearing versus a single bearing design with the use of a large femoral head (36mm or 40mm). We hypothesize the use of dual-mobility components in revision THA will be associated with a lower dislocation rate in the first year following surgery.

The purpose of this study is to design a fast-track pathway for patients referred to the University Hospital of Southern Denmark, Esbjerg, with high probability of having a dislocated hip prosthesis with the primary aim to reduce the time from arrival to reduction and the total hospitalization time. Secondary aims are to * investigate whether quicker prosthesis reduction influences on hip function and quality of life afterwards * reduce the pain experience immediately and in the long term * increase patient satisfaction without changing the overall complication rate and readmission/mortality

The general purpose of this study is to examine whether the dual mobility cup (Novae® Serf) reduces the number of hip dislocations after total hip replacement, both early dislocation (≤1 year) and late dislocation (\>1 year) after primary THR compared with a conventional cup design (Trabecular MetalTM Modular Acetabular System).