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2004•Chinese Journal of Spine and Spinal CordRequires access

The significance of the high-intensity zone(HIZ) of painful lumbar disc on MRI in diagnosing discogenic low back pain

Wenwen Wu

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Abstract

Objective:To explore the role of a high-intensity zone of painful lumbar disc on magnetic resonance imaging in diagnosing discogenic low back pain.Method:According to MR imaging and awake discography of 52 patients with low back pain without disc herniation in lumbar vertebrae,we analysed the correlation between the HIZ and discography.Result:In all of 142 discs in 52 patients at discography,38 proved concordantly painful,17 presented HIZ.All 17 discs with HIZ showed pain reproduction and abnormal morphology with anular tears extending either well into or through the outer third of the annulus fibrosus.Conclusion:In patients with symptomatic low back pain without disc herniation,the HIZ is a reliable marker of painful outer anular disruption.

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What this paper is about

Objective:To explore the role of a high-intensity zone of painful lumbar disc on magnetic resonance imaging in diagnosing discogenic low back pain.Method:According to MR imaging and awake discography of 52 patients with low back pain without disc herniation in lumbar vertebrae,we analysed the correlation between the HIZ and discography.Result:In all of 142 discs in 52 patients at discography,38 proved concordantly painful,17 presented HIZ.All 17 discs with HIZ showed pain reproduction and abnormal morphology with anular tears extending either well into or through the outer third of the annulus fibrosus.Conclusion:In patients with symptomatic low back pain without disc herniation,the HIZ is a reliable marker of painful outer anular disruption.

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Available abstract

Objective:To explore the role of a high-intensity zone of painful lumbar disc on magnetic resonance imaging in diagnosing discogenic low back pain.Method:According to MR imaging and awake discography of 52 patients with low back pain without disc herniation in lumbar vertebrae,we analysed the correlation between the HIZ and discography.Result:In all of 142 discs in 52 patients at discography,38 proved concordantly painful,17 presented HIZ.All 17 discs with HIZ showed pain reproduction and abnormal morphology with anular tears extending either well into or through the outer third of the annulus fibrosus.Conclusion:In patients with symptomatic low back pain without disc herniation,the HIZ is a reliable marker of painful outer anular disruption.

Key concepts: Discography, Medicine, Low back pain, Magnetic resonance imaging, Disc herniation, Lumbar, Lumbar disc herniation, Tears

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