Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid Injection

Introduction. There is no report on the effect of injectate viscosity on epidural distribution for lumbar transforaminal epidural steroid injections (L-TFESIs). The aim of this study was to evaluate the influence of injectate viscosity on the volume needed to reach specific landmarks in L-TFESIs. Me...

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Main Authors: Jongwoo Choi, Nackhwan Kim, Matthew Smuck, Sang-Heon Lee
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Pain Research and Management
Online Access:http://dx.doi.org/10.1155/2019/2651504
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author Jongwoo Choi
Nackhwan Kim
Matthew Smuck
Sang-Heon Lee
author_facet Jongwoo Choi
Nackhwan Kim
Matthew Smuck
Sang-Heon Lee
author_sort Jongwoo Choi
collection DOAJ
description Introduction. There is no report on the effect of injectate viscosity on epidural distribution for lumbar transforaminal epidural steroid injections (L-TFESIs). The aim of this study was to evaluate the influence of injectate viscosity on the volume needed to reach specific landmarks in L-TFESIs. Methods. A prospective, randomized, comparative human study involving 118 patients undergoing L-TFESIs was conducted. The study subjects were divided into two groups by a random selection method: raw viscosity group (RV, n=58) and low viscosity group (LV, n=60). Contrast volumes were recorded as the contrast flow reached specific anatomical landmarks under fluoroscopic guidance. Results and Discussion. The possibility of delivering the injectate to each landmark showed a positive correlation with the amount and a negative correlation with the viscosity of the injectate. However, for landmarks at the medial aspect of the superior pedicle of the corresponding level of injection and for those beyond the spinous process over the contralateral spinal segment, the influence of viscosity was not statistically significant. Conclusion. The epidural distribution of the contrast agent through the transforaminal approach was most affected by the injectate volume and was also partly affected by the viscosity.
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spelling doaj-art-77b4381999044877bc5263e874a684232025-02-03T06:01:09ZengWileyPain Research and Management1203-67651918-15232019-01-01201910.1155/2019/26515042651504Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid InjectionJongwoo Choi0Nackhwan Kim1Matthew Smuck2Sang-Heon Lee3Graduate School, College of Medicine, Korea University, Seoul, Republic of KoreaSpine Center, Korea University Anam Hospital, Seoul, Republic of KoreaDepartment of Orthopaedic Surgery, Stanford University Medical Center, Stanford, CA, USASpine Center, Korea University Anam Hospital, Seoul, Republic of KoreaIntroduction. There is no report on the effect of injectate viscosity on epidural distribution for lumbar transforaminal epidural steroid injections (L-TFESIs). The aim of this study was to evaluate the influence of injectate viscosity on the volume needed to reach specific landmarks in L-TFESIs. Methods. A prospective, randomized, comparative human study involving 118 patients undergoing L-TFESIs was conducted. The study subjects were divided into two groups by a random selection method: raw viscosity group (RV, n=58) and low viscosity group (LV, n=60). Contrast volumes were recorded as the contrast flow reached specific anatomical landmarks under fluoroscopic guidance. Results and Discussion. The possibility of delivering the injectate to each landmark showed a positive correlation with the amount and a negative correlation with the viscosity of the injectate. However, for landmarks at the medial aspect of the superior pedicle of the corresponding level of injection and for those beyond the spinous process over the contralateral spinal segment, the influence of viscosity was not statistically significant. Conclusion. The epidural distribution of the contrast agent through the transforaminal approach was most affected by the injectate volume and was also partly affected by the viscosity.http://dx.doi.org/10.1155/2019/2651504
spellingShingle Jongwoo Choi
Nackhwan Kim
Matthew Smuck
Sang-Heon Lee
Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid Injection
Pain Research and Management
title Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid Injection
title_full Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid Injection
title_fullStr Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid Injection
title_full_unstemmed Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid Injection
title_short Effect of Injectate Viscosity on Epidural Distribution in Lumbar Transforaminal Epidural Steroid Injection
title_sort effect of injectate viscosity on epidural distribution in lumbar transforaminal epidural steroid injection
url http://dx.doi.org/10.1155/2019/2651504
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