The position of the conus medullaris in children with a Chiari I malformation.

Academic Article


  • The purpose of this study is to determine whether there is a relationship between the conus level and patients with a Chiari I malformation. This retrospective MRI study evaluated conus levels and degrees of tonsillar ectopia in 26 children ages 5-16 years with a Chiari I malformation. Our results show that there seems to be no relationship between the conus level and the amount of tonsillar ectopia that a child with a Chiari I malformation might have. In fact, there seemed to be an inverse relationship between these two entities. Interestingly, we have also found that of all coni located at the L2-L3 disc space or below, these patients had a syrinx associated with their Chiari I malformation and that all malformations without a syrinx had a 'normally' positioned conus medullaris.
  • Published In


  • Adolescent, Arnold-Chiari Malformation, Cerebellar Diseases, Child, Child, Preschool, Choristoma, Encephalocele, Female, Humans, Lumbosacral Region, Magnetic Resonance Imaging, Male, Retrospective Studies, Rhombencephalon, Spinal Cord
  • Digital Object Identifier (doi)

    Author List

  • Tubbs RS; Elton S; Bartolucci AA; Grabb P; Oakes WJ
  • Start Page

  • 249
  • End Page

  • 251
  • Volume

  • 33
  • Issue

  • 5