Preoperative diagnosis and postoperative evaluation value of cervico-medullary angle measurements on MRI in patients with basilar invagination
MO Shu-qun
HAN Li-xin
CAO Hui-xia
CUI Jing
CHEN Geng
WANG Jun
Abstract：Objective To investigate the preoperative diagnosis and postoperative evaluation value of cervico-medullary angle measured on MRI patients with basilar invagination by comparing those among patients before and after operation and normal controls .Methods Sixty-three basilar invagination cases diagnosed and operated in our hospital from Jan 2005 to Jan 2013 and 40 normal controls with no craniovertebral junction abnormalities in the same period were collected ,the cervico-medullary angles were measured and compared in patients before and after operation and normal controls .Results Among the 63 cases of basilar invagination ,42 cases underwent preoperative and postoperative MRI examinations ,the other 21 patients only had preoperative scans .The mean preoperative CMA of 63 patients was (138 .0 ± 11 .2)° ,the mean postoperative CMA of 42 patients was (156 .3 ± 8 .7)° ,and the mean CMA of 40 normal controls was (154 .9 ± 7 .7)° .The mean preoperative CMA was smaller than postoperative and normal control values ,P <0 .05 ,but the latter two had no significant difference ,P>0 .05 .Conclusion CM A can be an important index for diagnosis and postoperative evaluation of basilar invagination .
Keywords：Basilar invaginationCervico-medullary angleM RIDiagnosisPostoperative evaluation
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 703-705 )