• J Arthroplasty · Jun 2014

    Randomized Controlled Trial Comparative Study

    Comparing the effects of single shot sciatic nerve block versus posterior capsule local anesthetic infiltration on analgesia and functional outcome after total knee arthroplasty: a prospective, randomized, double-blinded, controlled trial.

    • Ben Safa, Jeffrey Gollish, Lynn Haslam, and Colin J L McCartney.
    • Department of Anesthesia, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada.
    • J Arthroplasty. 2014 Jun 1;29(6):1149-53.

    AbstractPeripheral nerve blocks appear to provide effective analgesia for patients undergoing total knee arthroplasty. Although the literature supports the use of femoral nerve block, addition of sciatic nerve block is controversial. In this study we investigated the value of sciatic nerve block and an alternative technique of posterior capsule local anesthetic infiltration analgesia. 100 patients were prospectively randomized into three groups. Group 1: sciatic nerve block; Group 2: posterior local anesthetic infiltration; Group 3: control. All patients received a femoral nerve block and spinal anesthesia. There were no differences in pain scores between groups. Sciatic nerve block provided a brief clinically insignificant opioid sparing effect. We conclude that sciatic nerve block and posterior local anesthetic infiltration do not provide significant analgesic benefits.Copyright © 2014 Elsevier Inc. All rights reserved.

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