| The Level of Tuffier's Line in Korean Adults. |
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Jae Kyu Cheun, Young Ho Jang, Han Mok Yu, In Jung Kim |
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| Abstract |
BACKGROUND
Tuffier's line, which connect the two iliac crests, is the often used landmark in determining the level for the needle insertion into lumbar intervertebral space for the spinal and/or epidural blocks. However, the level of Tuffier's line varies depending on the observer.
METHODS
Two methods were used to measure the level of Tuffier's line was measured on a simple abdominal X-ray taken in the supine position (study 1). Second, the level of Tuffier's line was also measured on fluroscopy of students in the sitting position (study 2).
RESULTS
Overall, the level of Tuffier's line was most frequently observed along the L4-5 intervertebral space and second most frequently observed along the lower one-third of L4. In study 1 using abdominal X-ray, the level of Tuffiers line was most frequently observed along the L4-5 intervertebral space, however, the second most frequently observed level varied depending on the ages of the volunteers. In study 2 using fluoroscopy, the level of Tuffier's line was most frequently observed along the L4-5 intervertebral space and second most frequently observed along the upper one-third of L5.
CONCLUSIONS
The level of Tuffier's line was most frequently observed along the L4-5 intervertebral space both in the supine and sitting positions. Further, the level of Tuffier's line went higher with age for women but stayed constant independent of age for men in the supine position. |
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