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KMID : 0361619760110040671
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Journal of the Korean Orthopaedic Association
1976 Volume.11 No. 4 p.671 ~ p.680
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Clinical Significance of Lumbar Myelography
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고원순/Ko, Won Soon
나수균/조덕연/김기용/Rah, Soo Kyoon/Cho, Duk Yun/Kim, Key Yong
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Abstract
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A series of 84 cases operated upon for herniated intervertebral disc of lumbar region was studied with respect to the diagnostic value of myelographic ezamination.. . Various clinical signs including level, of tenderness, sensory impairment, motor weakness, door bell sign and Lasegue test, were reviewed.
The. clinical diagnosis derived from -these signs was correct in 54.8,%.
The plain X-ray film showed narrowing of disc space in 44 cases.
As. to the mgelographic findings, mode and level of .indentation, positive and negative findings were analyzed- and compar~aons were made with operative findings.
Among 84 cases, 47 cases showed lateral .indentation, 32 cases central and 5 cases complete block. As to the level, L4^~5 disc-space was dominant. As a whole, .the niyelographic findings accurately corresponded with the operative findings in 77.4 %, 65 cases.
However, diagnostic accuracy was varied according to level, i.e., in case of L4^~5 disc herniation, 45 cases among 53 cases showed correct myelographic diagnosis, while only 10-cases among 17 cases showed correct myelographic diagnosis in L5^~Sl disc: herni~tioa. _
In addition, if electomyography and discography are added aS diagnostic aid, the preoperative _ diagnostic accuracy -will be higher but those are not available in our circumstance.
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