Pain Management

Acute Pain Management

Does Continuous Sciatic Nerve Block Improve Postoperative Analgesia and Early Rehabilitation After Total Knee Arthroplasty? A Prospective, Randomized, Double-Blinded Study

Cappelleri G, Ghisi D, Fanelli A, et al (Azienda Ospedaliera Istituto Ortopedico Gaetano Pini, Milan, Italy; Azienda Ospedaliera di Cremona, Italy; et al) Reg Anesth Pain Med 36:489-492, 2011^§

Abstract

Introduction

The aim of this prospective, randomized, double-blind study was to evaluate whether continuous sciatic nerve block can improve postoperative pain relief and early rehabilitation compared with single-injection sciatic nerve block in patients undergoing total knee arthroplasty (TKA) and lumbar plexus block.

Methods

After ethical committee approval and written informed consent, 38 patients with ASA physical status I to II were enrolled. The first group received continuous sciatic and continuous lumbar plexus blocks (group regional or R, n = 19), whereas the second group received a single sciatic nerve block followed by saline infusion through the sciatic catheter and continuous lumbar plexus block (group control or C, n = 19). We assessed morphine consumption, scores for visual analog scale for pain at rest (VASr), and during continuous passive motion (VASi during CPM) for 48 hours postoperatively. Effectiveness of early ambulation was also evaluated.

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