Intradural Variations of Spinal Nerve Rootlets.
10.11637/kjpa.1988.1.1.29
- Author:
Won Seok SUR
;
Hyoung Woo PARK
;
Ki Soo YOO
;
Min Suck CHUNG
;
Ki Suck KO
;
In Hyuk CHUNG
;
Tai Sun SHIN
- Publication Type:Original Article
- MeSH:
Adult;
Humans;
Incidence;
Spinal Nerves*
- From:Korean Journal of Physical Anthropology
1988;1(1):29-37
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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.
