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Journal of the Korean Academy of Rehabilitation Medicine 2000;24(5):972-976.
Effect of Transforaminal Epidural Injection in Patients with Lumbar Radicular Pain.
Ko, Hyun Yoon , Park, Byung Kyu , Kim, Hoon
Department of Rehabilitation Medicine, Pusan National University College of Medicine.
요추 신경근 통증 환자의 경추간공 경막외 주사 효과
고현윤, 박병규, 김훈
부산대학교 의과대학 재활의학교실
Abstract

Objective
To determine the therapeutic effect of transforaminal epidural injections in patients with refractory lumbar radicular pain.


Method
Thirty-five patients with lumbar radicular pain who did not receive any other interventional procedures were studied. Transforaminal epidurograms and epidural steroid injections via eighty-nine intervertebral foramens were performed under C-arm fluoroscopic visualization. After confirmation of proper needle placement, 20∼40 mg of triamcinolone and 1 cc of 2% lidocaine hydrochloride were injected into each safe triangle of the intervertebral foramen. Patients were evaluated for visual analogue scale (VAS) and straight leg raising (SLR) test at pre-injection, 1 week post-injection and 3 months post-injection. Changes over time were assessed statistically using ANOVA.


Results
The averages of VAS reduced significantly (p<0.05) from 5.6⁑1.8 at pre-injection, to 3.5⁑1.7 at 1 week pos-tinjection, to 2.1⁑2.0 at 3 months post-injection, respectively. The averages of SLR augmented significantly (p<0.05) from 51.6o⁑16.7o at pre-injection, to 66.6o⁑16.0o at 1 week post-injection, to 77.2o⁑15.1o at 3 months post-injection, respectively. Twenty-six out of thirty-five patients (74.3%) had a successful long-term outcome, reporting at least an over 50% reduction between pre-injection and 3 months post-injection in VAS.


Conclusion
Transforaminal epidural injection is an effective treatment for patients with lumbar radicular pain when evaluated after 1 week and 3 months post-injection.

Key Words: Transforaminal epidural injection, Radicular pain, Steroid


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