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KMID : 0377919880010010029
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Korean Journal of Physical Anthropology
1988 Volume.1 No. 1 p.29 ~ p.37
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Intradural Variations of Spinal Nerve Rootlets
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서원석/Won Seok Sur
박형우/유기수/정민석/고기석/정인혁/신태선/Hyoung Wool Park/Ki Soo Yoo/Min Suck Chung/Ki Suck Ko/In Hyuk Chung/Tai Sun Shin
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Abstract
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We studied the intradural variations of spinal nerve rootlets in 100 cases of Korean adults. The results of the study are as follows ; 1. The incidence of intrasegmental variations (abberrant rootlets) is high in cervical segments and decreased
toward lumbosacral segments. The incidence is higher in posterior rootlets than anterior, except cervical sesments. 2. The incidence of intersegmental variations is higher in posterior rootlets than anterior, and generally high in cervical and
lumbar
segments. 3. We divide the intersegmental variations into supernumerary rootlets, dividing rootlets, and anastomosing rootlets, and among them the incidence of anastomosing rootlets is higher. We divide the anastomosing rootlets into parallel
anastomosing rootlets, uniting anastomosing rootlets, and rearrangement anastomosing rootlets. 4. The anterior to posterior anastomosing of spinal nerve rootlet is present in 4 of cases studied.
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