Open AccessProximal Versus Distal Continuous Adductor Canal Blocks: Does Varying Perineural Catheter Location Influence Analgesia? A Randomized, Subject-Masked, Controlled Clinical Trial
Author(s) -
Jacklynn F. Sztain,
Bahareh Khatibi,
Amanda M. Monahan,
Engy T. Said,
Wendy B. Abramson,
Rodney A. Gabriel,
John J Finneran,
Richard H. Bellars,
Phirum Nguyen,
Scott T. Ball,
Francis B. Gonzales,
Sonya Ahmed,
Michael C. Donohue,
Jennifer Padwal,
Brian M. Ilfeld
Publication year - 2018
Publication title -
anesthesia and analgesia/anesthesia and analgesia
Language(s) - English
Resource type - Journals
eISSN - 1526-7598
pISSN - 0003-2999
DOI - 10.1213/ane.0000000000003422
Subject(s) - adductor canal , medicine , ropivacaine , thigh , catheter , surgery , femoral nerve , anesthesia , medial compartment of thigh , local anesthetic , saphenous nerve , randomized controlled trial
A continuous adductor canal block provides analgesia after surgical procedures of the knee. Recent neuroanatomic descriptions of the thigh and knee led us to speculate that local anesthetic deposited in the distal thigh close to the adductor hiatus would provide superior analgesia compared to a more proximal catheter location. We therefore tested the hypothesis that during a continuous adductor canal nerve block, postoperative analgesia would be improved by placing the perineural catheter tip 2-3 cm cephalad to where the femoral artery descends posteriorly to the adductor hiatus (distal location) compared to a more proximal location at the midpoint between the anterior superior iliac spine and the superior border of the patella (proximal location).