Conus medullaris migration during the third trimester: A retrospective study

To explore the migration process of the conus medullaris (CM) and propose a normal range of CM levels during the third trimester.We retrospectively collected the ultrasonographic and clinical data of 588 fetuses during the third trimester. We located the CM and assigned scores. One-way analysis of variance and linear regression analyses were used to statistically analyze CM migration. Statistical significance was set at p < 0.05.The CM levels...