The Effect of Spinal Flexion in the Lateral Decubitus Position on the Unilaterality During Spinal Anesthesia

For unilateral spinal block, spinal local anesthetics should take effect on the spinal nerves of one side. With full flexion of the spine, the cauda equina becomes tightened and hangs in the middle of the subarachnoid space. This study was performed to assess if flexion of the vertebral column facilitates unilateral spinal anesthesia.

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Key information

Conditions

Spinal Anesthesia

Age range

20 year–45 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Seoul national university hospital

Seoul, 110-744, South Korea

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

ASA physical status Ⅰ-Ⅱ, scheduled for elective knee arthroscopy under spinal anesthesia

Exclusion criteria

Hemodynamically unstable patients
Lumbar disease
patients with back pain

Treatment and study plan

lateral decubitus position with full spinal flexion

Other

The patients maintained the lateral decubitus position with the hips and back fully flexed for 15 minutes.

lateral decubitus position without spinal flexion

Other

the patients are allowed to straighten their flexed hips and back to obtain the normal lordotic curvature of spinal column

Primary outcomes

Time for the complete regression of pinprick spinal analgesia on the nondependent legs

Time frame: Sensory and motor blockade were evaluated within 3 hour of intrathecal injection

Sponsors and collaborators

Lead sponsor

Seoul National University Hospital

Other

Registry information

Important dates

Study start: 2011
Primary completion: 2011
Study completion: 2011
First posted: Mar 23, 2011
Registry last updated: May 30, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

Completed