Orthopaedic surgery
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Orthop Surg
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Orthopaedic surgery · Feb 2009
Comparative StudyAnalysis of the relationship between morphology of intervertebral disc and some correlated factors following discography in patients with chronic low back pain.
To evaluate the diagnostic effectiveness of discography in discogenic low back pain (LBP). ⋯ (i) Compared with the younger patients, older LBP patients have a lower positive rate of discography despite the presence of more serious degenerative disc changes; (ii) outer layer disruption of the annulus fibrous correlates with positive discography; (iii) MRI intensity changes are not specific in diagnosing discogenic pain. Additional discography is needed to identify the painful disc; and (iv) the contrast volume injected into discs can be affected by a variety of factors which restrict its diagnostic value.