Wolf S, Schneble F, Tröger J
Department of Pediatric Radiology, Children's Hospital, University of Heidelberg, FRG.
Pediatr Radiol. 1992;22(8):590-2. doi: 10.1007/BF02015359.
This study was intended to determine the level of the conus medullaris in normal babies. We examined 114 healthy infants using high resolution ultrasound which identified the spinal cord and the tip of the conus medullaris. This method provided a good analysis of the level of the conus medullaris so that we could assess the rate of ascent to L1/2. The range of the conus level for all children was at TH12/L1 interspace to L4.78% of babies aged between the 30th and 39th postmenstrual week had the tip of the conus medullaris between L2 and L4.84% of babies aged between the 40th and 63rd postmenstrual week had their conus level between TH12/L1 and L1/2 interspace. In one girl aged 53 weeks the tip was found at L4. Ultrasound is a reliable method to observe the development of the conus level in young infants and to identify a tethered cord.
本研究旨在确定正常婴儿脊髓圆锥的水平。我们使用高分辨率超声检查了114名健康婴儿，该检查可识别脊髓和脊髓圆锥的尖端。这种方法对脊髓圆锥的水平进行了很好的分析，以便我们能够评估其上升至L1/2的速率。所有儿童的脊髓圆锥水平范围在胸12/腰1间隙至腰4之间。在月经周期第30至39周的婴儿中，78%的脊髓圆锥尖端位于腰2至腰4之间。在月经周期第40至63周的婴儿中，84%的脊髓圆锥水平在胸12/腰1和腰1/2间隙之间。在一名53周大的女孩中，发现其脊髓圆锥尖端位于腰4处。超声是观察幼儿脊髓圆锥水平发育并识别脊髓栓系的可靠方法。
