The authors would like to acknowledge the members of the Fast-track Centre for Hip and Knee Replacement: Torben B. Hansen M.D., Ph.D., Prof. Department of Orthopedics, Holstebro Hospital, Holstebro, Denmark. Kirill Gromov, M.D., Ph.D., Ass.Prof. Department of Orthopedics Hvidovre Hospital, Hvidovre Denmark. Thomas Jakobsen, M.D., Ph.D., DM.Sci., Ass. Prof. Department of Orthopedics, Aalborg University Hospital, Farsø, Denmark. Claus Varnum, M.D., Ph.D., Ass. Prof. Department of Orthopedic Surgery, Lillebaelt Hospital—Vejle, University Hospital of Southern Denmark, Denmark. Soren Overgaard, M.D., DM.Sci., Prof, Department of Orthopedics, Bispebjerg Hospital, Copenhagen, Denmark. Mikkel Rathsach, M.D., Ph.D., Ass. Prof. Department of Orthopedics, Gentofte Hospital, Gentofte, Denmark.

Martin Lindberg-Larsen, M.D., Ph.D., Prof. Department of Orthopedic Surgery, Svendborg Hospital, Odense University Hospital, Denmark. Manuel Josef Bieder, M.D. Department of Orthopedic Surgery, Næstved Hospital, Denmark.