The threshold elicited motor response via an in situ femoral nerve catheter predicts analgesia following total knee replacement

摘要

BackgroundContinuous femoral nerve blocks are a part of the multimodal perioperative anesthetic regimen following total knee replacement. Elicitation of a quadriceps muscle contraction (QC) at placement is desirable. We prospectively evaluated the relationship between elicited motor response and threshold current with block success in situ femoral nerve catheters after total knee replacement.