超声观察新生儿脊髓圆锥末端正常位置

目的 探讨超声确定正常新生儿脊髓圆锥末端位置的方法。 方法 选择足月产正常新生儿150名,用超声诊断仪测量内终丝的长度和骶圆距离,并以此表示新生儿脊髓圆锥末端的正常位置。 结果 新生儿内终丝的长度为3.62~5.54 cm;骶圆距离为5.92 ~9.72 cm;内终丝长度、骶圆距离与新生儿身高、体质量及内终丝长度与骶圆距离间均有一定相关性。 结论 内终丝的长度和骶圆距离能用以表示脊髓圆锥末端的位置。

Ultrasonic observation on location of normal conus medullaris tip in neonates

Objective To explore the methods on locating conus medullaris in neonates with ultrasound. Methods The normal location of conus medullaris in 150 full-term neonates were expressed in two ways: The length of internal filum terminal and the distance between conus medullaris and sacral hiatus. Results The length of internal filum terminal was from 3.62 cm to 5.54 cm, and the distance between conus medullaris and sacral hiatus was from 5.92 cm to 9.72 cm. The length of internal filum terminal and the distance between conus medullaris and sacral hiatus were correlated with newborn' height and weight. There was correlation between the length of internal filum terminal and the distance between conus medullaris. Conclusion The length of internal filum terminal, the distance between conus medullaris and sacral hiatus can express exactly the position of conus medullaris in neonates.