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2011;14;361-370. The Dosages of Corticosteroid in Transforaminal Epidural Steroid Injections for Lumbar Radicular Pain Due to a Herniated Disc
Randomized Trial
Seong-Sik Kang, MD, Ph D, Byeong-Mun Hwang, M.D, Ph D, Heejeong Son, MD, PhD, Il-Young Cheong, MD, Sang-Jin Lee, MD, Sang-Hyun Lee, MD, and Tae-Yoon Chung, MD

BACKGROUND: Intervertebral disc herniations are the most common cause of lumbosacral radiculopathy, and transforaminal epidural steroid injection (TFESI) is an important tool in treating lumbosacral radiculopathy. But the ideal dose of corticosteroid in the epidural management of lumbosacral radiculopathy has yet to be determined.

OBJECTIVE: The aim of this study was to determine the effective dose of steroids in TFESI for pain reduction in patients with lumbosacral radiculopathy.

STUDY DESIGN: A randomized, double blind, controlled trial.

SETTING: An interventional pain management practice center.

METHODS: A total of 160 participants received 2 epidural injections of either 5 mg, 10 mg, 20 mg, or 40 mg of triamcinolone in one week intervals via TFESI. The degree of participant satisfaction and verbal numerical rating scale (VNRS) were assessed at pretreatment, one week, and 2 weeks after the first TFESI.

RESULTS: The number of participants experiencing pain relief was significantly less than in other groups in the 5 mg triamcinolone group at one week after the first TFESI. There were no significant differences among the groups at one week after the second TFESI. VNRS decreased in the other groups except the triamcinolone 5 mg group at one week after the first TFESI. VNRS decreased in all groups at one week after the second TFESI.

LIMITATIONS: The limitations include lack of placebo control group and lack of long-term follow-up.

CONCLUSIONS: We recommend a minimal effective dose of corticosteroid (triamcinolone 10 mg) in TFESI for patients with lumbosacral radiculopathy.


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Pain Physcian
Seong-Sik Kang
Byeong-Mun Hwang
Heejeong Son
Il-Young Cheong
Sang-Jin Lee
Sang-Hyun Lee
Tae-Yoon Chung

herniated disc
transforaminal epidural steroid injection