[Evidence-based update in hip arthroplasty].

The present manuscript provides an overview of current evidence-based data and new clinically relevant developments in the field of hip arthroplasty. A multitude of current clinical trials have focussed on tribology with special interest on metal-on-metal implants. Large trials from implant registries have defined specific risk factors for early implant failure and pseudotumors in surface replacement. Furthermore, new ceramic liners and femoral head implants have been investigated in randomized trials. Apart from other very interesting studies, the results of large meta-analyses are now available for laboratory values in periprosthetic infection, antibiotic prophylaxis, regional anesthesia, prevention of thromboembolism, implant fixation, navigation and clinical pathways to prevent complications.