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Kim, Park, Nam, Kim, Hwang, and Min: Lumbar Dorsal Ramus Block for Low Back Pain
Clinical Article

Journal of Korean Neurotraumatology Society 2007; 3(2): 82-86.

Published online: 31 December 2007

DOI: https://doi.org/10.13004/jknts.2007.3.2.82

Lumbar Dorsal Ramus Block for Low Back Pain

Kyoung-Tae Kim, MD, Seung-Won Park, MD, Taek-Kyun Nam, MD, Young-Baeg Kim, MD, Sung-Nam Hwang, MD, Byung-Kook Min, MD

Department of Neurosurgery, College of Medicine, Chung-Ang University, Seoul, Korea.

Address for correspondence: Seung-Won Park, MD. Department of Neurosurgery, College of Medicine, Chung-Ang University, 65-207 Hangangno 3-ga, Yongsan-gu, Seoul 140-757, Korea. Tel: +82-2-748-9565, Fax: +82-2-798-2818, stempark@gmail.com

Copyright © 2007 Journal of Korean Neurotraumatology Society

Abstract

Objective

The goal of this study was to establish the benefits and prognostic factors of lumbar dorsal ramus block (DRB) for low back pain.

Methods

A retrospective analysis was done with the data obtained from 344 patients with low back pain. The lumbar dorsal rami of L3, 4, 5 were blocked with 0.5% bupivacaine hydrochloride and methylprednisolone acetate. Visual analogue scale (VAS) was evaluated at 2 weeks, 1 month and 3 months and compared with pretreatment values. It was considered to be successful when the VAS grade at 3 months was improved more than 50%.

Results

The patients had underlying disorders like as sprain (172), spinal stenosis (67), lumbar fracture (36), herniated lumbar disc (35), acute post-operative pain (8), and chronic post-operative pain (26) with success rate of 62.8%, 22.4%, 58.3%, 22.9%, 87.5%, and 34.6%, respectively.

Conclusion

In sprain, the patients in young age (<60 years) and without leg pain showed good response to DRB.

Keywords: Low back pain, Lumbar dorsal ramus block, Prognostic factor

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