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BioMed Research International
Volume 2017 (2017), Article ID 8784149, 4 pages
Clinical Study

Ultrasonography-Guided Lumbar Periradicular Injections for Unilateral Radicular Pain

1Pain Treatment Centre of Department of Rehabilitation Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
2Department of Physiology and Pain Research Center, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, Guangdong Province, China

Correspondence should be addressed to Chao Ma; moc.621@99oahc_am

Received 3 November 2016; Revised 9 February 2017; Accepted 22 February 2017; Published 30 March 2017

Academic Editor: Qing Wang

Copyright © 2017 Qing Wan 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.


Objective. The aim of this study was to compare the accuracy and efficacy of sonographically guided lumbar periradicular injections through in-plane or out-of-plane approach techniques for patients with unilateral lower lumbar radicular pain. The feasibility and accuracy of these techniques were studied by means of computed tomography (CT). Methods. A total of 46 patients with chronic unilateral lumbar radicular pain were recruited and randomly assigned to either the in-plane or out-of-plane injection group. A mixture of 3 mL 1% lidocaine and 7 mg betamethasone was injected. The visual analog scale (VAS) was used to assess pain before and after treatment. Results. The pain intensity, as measured by VAS, significantly decreased in both in-plane and out-of-plane injection groups. Conclusions. The sonographically guided periradicular injections are feasible and effective in treating lumbar unilateral radicular pain.