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KMID : 0378019740170121717
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New Medical Journal
1974 Volume.17 No. 12 p.1717 ~ p.1722
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Statistical Survey of the Congenital Anomalies of the Lumbosacral Spine by Roentgenographic Examination
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Abstract
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The purpose of this study is to summarize the congenital anomalies of the lumbosacral spine and exhibit the statistical data for these anomalies.
This study was done at 1152 candidates random sample of people which got the pre-employment examination of the lumbosacral spine in Hwa-Soon Coal Mining Company in Hwa-Soon Gun from 1965 to 1973.
This pre-employment examination of the lumbosacral spine is . required by many heavy industrial organizations and companies in anywhere of the world. And therefore, this examnation has decreased the industrial disaster compensatory money very much.
The result of this study revealed that the following asymptomatic condition of the lumbosacral spine should not be employed for assigning to heavy labor in the industrial hygienic standpoint as the basic policy for the pre-employment.
1) Asymptomatic spina bifida oculta.
2) Lumbarization of first sacrum.
3) Asymptomatic asymmetric facets.
4) Asymptomatic latent spondylolys.is or spondylolisthesis.
5) Sacralization of last lumbar.
6) Accessory ossification center.
7) Columnar or block vertebra.
8) OEt.oarthritic change. etc.
The order of frequency in significant anomalies is as follows.
Spina bifida of first sacral spine is the highest inscidense, 16.9%, next was lumbarization of first sacral spine, 9.9% thirdly, asymmetrical facets of lumbosacral joints, 8.1%, for:rthly, spondylolysis
and spondylolisthesis, 5.5%, fiftly, extrasegment 4.8%, sithly, sacrization 2.3%,
My statistical study has prohibit that spina bifida is the most common congenital anomaly of lumbosacral spine.
These studies would bring some interest not only to the orthopedist but also to radiologist in academic standpoint.
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KEYWORD
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