In patients undergoing fast track total knee arthroplasty addition of buprenorphine to a femoral nerve block has no clinical advantage

摘要

Background:Several adjuvants have been proposed to prolong the effect of peripheral nerve blocks, one of which is buprenorphine. In this randomized double blinded placebo controlled trial we studied whether the addition of buprenorphine to a femoral nerve block prolongs analgesia in patients undergoing total knee arthroplasty in a fast track surgery protocol.