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Case Reports in Anesthesiology
Volume 2013, Article ID 874215, 3 pages
http://dx.doi.org/10.1155/2013/874215
Case Report

Transient Femoral Nerve Palsy Complicating “Blind” Transversus Abdominis Plane Block

11st Surgical Department, Athens Naval and Veterans Hospital, 70 Dinokratous Street, 11521 Athens, Greece
2Department of Anesthesiology, Athens Naval and Veterans Hospital, 70 Dinokratous Street, 11521 Athens, Greece

Received 9 July 2013; Accepted 4 August 2013

Academic Editors: A. Apan and U. Buyukkocak

Copyright © 2013 Dimitrios K. Manatakis et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We present two cases of patients who reported quadriceps femoris weakness and hypoesthesia over the anterior thigh after an inguinal hernia repair under transversus abdominis plane (TAP) block. Transient femoral nerve palsy is the result of local anesthetic incorrectly injected between transversus abdominis muscle and transversalis fascia and pooling around the femoral nerve. Although it is a minor and self-limiting complication, it requires overnight hospital stay and observation of the patients. Performing the block under ultrasound guidance and injecting the least volume of local anesthetic required are ways of minimizing its incidence.