The purpose of this study is to compare two accepted methods of pain control in knee arthroplasty surgery.The first method combines the periarticular injection of ropivacaine with continuous blockade of the femoral nerve.The second method uses periarticular infiltration of ropivacaine in combination with an bolus of ropivacaine into an intraarticular catheter placed intraoperatively followed by a continuous intraarticular infusion of ropivacaine. All patient will also receive a sustained-release oral opioid and oral rescue opioids determined by pain severity using the Visual Analog Scale (VAS)
Age range
18 Years – 80 Years
Sex
ALL
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Static and dynamic pain scores (VAS)
Timeframe: 72 h