Türkoğlu, KübraYıldız, İsaÖzturan, Kutay EnginIşık, CengizKaragoz, İbrahimYoldaş, HamitBilgi, Murat2021-06-232021-06-2320202602-31642602-3164https://doi.org/10.14744/ejmi.2019.49186https://app.trdizin.gov.tr/makale/TXpjeU16QTNOdz09https://hdl.handle.net/20.500.12491/1617Objectives: Total knee arthroplasty (TKA) is an operation that causes severe postoperative pain. Adductor canal block (ACB) is separated from the other peripheral blocks as a method that can provide analgesia by sensory blockade only. The aim of this study was to compare the analgesic effect of morphine-bupivacaine with pure bupivacaine in USGguided ACB after TKA. Methods: Sixty patients aged between 40-80 years with ASA I-III physical status who were scheduled for TKA surgery in our hospital were included in this prospective randomized study. Patients were randomly divided into two groups as Group BM (bupivacaine+morphine) and Group B (bupivacaine) by closed envelope method, and then the groups were compared with each other. Results: In Group BM, compared to Group B, there was a significant decrease in visual analogue scale (VAS) values during rest and movement at 8th hour, 12-24 hours time zone analgesic consumption and additional analgesia usage. Conclusion: We conclude that the morphine added to bupivacaine in the adductor canal block reduces the VAS value at 8th hour and analgesic consumption.eninfo:eu-repo/semantics/openAccessAdductor Canal BlockArthroplastyMorphineArticle10.14744/ejmi.2019.4918643327331372307