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Effect of Crossed Legged Position on Ultrasound Measured Posterior Longitudinal Ligament Length in Parturients.

Pregnancy Clinical Trial

Official title:
A Comparison of the Ultrasound Measured Posterior Longitudinal Ligament Length in Parturients in the Standard Sitting and Crossed Leg Positions: an Observational Study

Clinical Trial Summary

To investigate if sitting in flexed cross legged position for neuraxial techniques in term pregnant patients widens the size of the ultrasound acoustic window as measured by the visualized posterior longitudinal ligament length, during lumbar spine ultrasonography using longitudinal paramedian view, in comparison to the standard sitting flexed position.

Clinical Trial Description

This is a prospective observational study involving a total of 30 healthy term gestation pregnant patients with singleton fetuses.Patients will be randomly allocated to sit crossed leg or in standard position first. Using ultrasonography, the acoustic window for lumbar spinal anesthesia at L3-4 will be evaluated in both traditional sitting and crossed leg positions. Ultrasonography will be performed sequentially to measure the best visualized length of posterior longitudinal ligament,ligamentum flavum and interlaminar distance in the paramedian view.The scanned image will be saved to be remeasured by a third observer. Patients will be asked to score their comfort level while sitting in both positions. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04277988
Study type Observational
Source Lawson Health Research Institute
Contact
Status Completed
Phase
Start date March 2016
Completion date December 2016
View Details
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