Local Anesthetic in Total Knee Arthroplasty (TKA): Volume Versus Concentration
Status:
Completed
Trial end date:
2009-10-01
Target enrollment:
Participant gender:
Summary
In a randomized, double-blind, cross-over trial, 48 patients scheduled for total knee
arthroplasty with placement of an intracapsular catheter will be randomized to receive bolus
injection of ropivacaine in high volume/low concentration (20 ml, 5 mg/mL) or low volume/high
concentration (10 mL, 10 mg/mL) 6 and 24 hours postoperatively, and pain will be assessed at
rest and with mobilization for 2 hours after injections.