1. From the Department of Anesthesiology, Intensive Care and Pain Medicine, Peijas Hospital, University of Helsinki and HUS Helsinki University Hospital, Vantaa, Finland; the Department of Anesthesiology and Intensive Care, Central Finland Hospital Nova, Jyväskylä, Finland
2. the Department of Orthopedics and Traumatology, Arthroplasty Center, Peijas Hospital, University of Helsinki and HUS Helsinki University Hospital, Vantaa, Finland
3. From the Department of Anesthesiology, Intensive Care and Pain Medicine, Peijas Hospital, University of Helsinki and HUS Helsinki University Hospital, Vantaa, Finland
4. the Department of Orthopedics and Traumatology, Arthroplasty Center, Peijas Hospital, University of Helsinki and HUS Helsinki University Hospital, Vantaa, Finland; Terveystalo Kamppi, Helsinki, Finland
5. the Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and HUS Helsinki University Hospital, Helsinki, Finland
6. the Department of Clinical Medicine, Biostatistics, University of Turku and Turku University Hospital, Turku, Finland