Limited analgesic effect of continuous intraarticular ropivacaine for 48h TKA
Doubtful effect of continuous intraarticular analgesia after total knee arthroplasty
Acta Orthop. 2015 Jun;86(3):373-7200 patients undergoing total knee arthroplasty (TKA) were randomized to receive either 7.5mg/mL of ropivacaine or 9mg/mL of saline via a continuous intraarticular infusion pump for 48 hours postoperative. The purpose of this study was to determine the effectiveness of a continuous intraarticular infusion of ropivacaine in prolonging the effect of local infiltration analgesia (LIA). With the exception of lower pain in the first postoperative day, results demonstrated no significant differences in postoperative pain, requirement of additional analgesia, or functional recovery between groups.
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