Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/130878
Title: Intraoperative single-shot "3-in-1" femoral nerve block with ropivacaine 0.25%, ropivacaine 0.5% or bupivacaine 0.25% provides comparable 48-hr analgesia after unilateral total knee replacement
Authors: Ng, H.P.
Cheong, K.F. 
Lim, A.
Lim, J.
Puhaindran, M.E.
Issue Date: 2001
Citation: Ng, H.P., Cheong, K.F., Lim, A., Lim, J., Puhaindran, M.E. (2001). Intraoperative single-shot "3-in-1" femoral nerve block with ropivacaine 0.25%, ropivacaine 0.5% or bupivacaine 0.25% provides comparable 48-hr analgesia after unilateral total knee replacement. Canadian Journal of Anesthesia 48 (11) : 1102-1108. ScholarBank@NUS Repository.
Abstract: Purpose: To compare analgesia after intraoperative single shot "3-in-1" femoral nerve block (FNB) in combination with general anesthesia using ropivacaine 0.25%, ropivacaine 0.5% with bupivacaine 0.25% for total knee replacement (TKR). Methods: We performed a randomized, double-blind study in 48 patients for elective TKR under general anesthesia. Patients were randomized to one of four groups (C: sham block, RI: "3-in-1" FNB using 30 mL of ropivacaine 0.25%, R2: "3-in-1" FNB using 30 mL of ropivacaine 0.5%, B: "3-in-1" FNB using 30 mL of bupivacaine 0.25%). Verbal pain score (VPS) both at rest and movement were assessed for 48 hr after TKR (0=none; 1=mild; 2=moderate; 3=severe). Total morphine consumption and its associated side effects, duration of hospitalization after operation were also compared. Results: There were no differences in patients' physical characteristics, intraoperative morphine usage, operation time, tourniquet time or length of hospitalization between the four groups. When compared with group C, the VPS was significantly lower in groups R1, R2 and B at one, four, eight, 24 and 48 hr after TKR (P
Source Title: Canadian Journal of Anesthesia
URI: http://scholarbank.nus.edu.sg/handle/10635/130878
ISSN: 0832610X
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