Power Stephen P, Costello Daniel J, Tobin W Oliver
Department of Neurology, Cork University Hospital, Wilton, Cork, Ireland.
Obesity (Silver Spring). 2014 Jul;22(7):1747-9. doi: 10.1002/oby.20745. Epub 2014 Apr 4.
To determine the proportion of patients who would have an unsuccessful lumbar puncture (LP) due to commonly used LP needles being too short.
Three hundred consecutive adults (age 16-99, mean age 56) who underwent abdominal CT over a 6-month period were identified. The distance from the skin to the midpoint of the spinal canal was measured in the axial plane, at the level of the iliac crest. This was compared to the length of commonly used spinal needles (88 mm) to assess the number of patients who would have an unsuccessful LP due to this distance being greater than 88 mm from the skin.
In 72/300 (24%) patients, the midpoint of the spinal canal was greater than 88 mm from the skin. A total of 54/72 (75%) of those patients were female. Of the female participants, 54/159 (34%) had the midpoint of their spinal canal at a distance of greater than 88 mm from the skin. In the male patients, only 18/141 (13%) had a similar finding.
This is the first high-quality study to demonstrate that 24% of the population will have an unsuccessful LP procedure if commonly available spinal needles. We demonstrated that 34% of female patients would have an unsuccessful procedure while, in contrast, a successful LP should be possible in 87% of male patients.
确定因常用腰穿针过短而导致腰穿失败的患者比例。
确定了连续6个月内接受腹部CT检查的300名成年人（年龄16 - 99岁，平均年龄56岁）。在髂嵴水平的轴位平面上测量从皮肤到椎管中点的距离。将其与常用腰穿针的长度（88毫米）进行比较，以评估因该距离大于从皮肤到88毫米而导致腰穿失败的患者数量。
在72/300（24%）的患者中，椎管中点距皮肤大于88毫米。这些患者中共有54/72（75%）为女性。在女性参与者中，54/159（34%）的椎管中点距皮肤大于88毫米。在男性患者中，只有18/141（13%）有类似发现。
这是第一项高质量研究，表明如果使用常用的腰穿针，24%的人群会出现腰穿操作失败。我们证明34%的女性患者会操作失败，而相比之下，87%的男性患者应该能够成功进行腰穿。
