Andersen LJ, Poulsen T, Krogh B, Nielsen T. Postoperative analgesia in total hip arthroplasty: A randomized double-blinded, placebo-controlled study on peroperative and postoperative ropivacaine, ketorolac, and adrenaline wound infiltration. ActaO [Internet]. 2007 Jan. 1 [cited 2026 Jul. 15];78(2):187-92. Available from: https://actaorthop.org/actao/article/view/19019