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

Spinal Anesthesia Clinical Trial

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01321684
• Other study ID #: H-1006-100-322
• Status: Completed
• Phase: N/A
• First received: March 18, 2011
• Last updated: May 26, 2012
• Start date: March 2011
• Est. completion date: October 2011

Study information

• Verified date: May 2012
• Source: Seoul National University Hospital
• Contact: n/a
• Is FDA regulated: No
• Health authority: Korea: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 32
• Est. completion date: October 2011
• Est. primary completion date: October 2011
• Accepts healthy volunteers: No
• Gender: Male
• Age group: 20 Years to 45 Years

Eligibility

Inclusion Criteria:

• ASA physical status ?-?, scheduled for elective knee arthroscopy under spinal anesthesia

Exclusion Criteria:

• Hemodynamically unstable patients

• Lumbar disease

• patients with back pain

Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Supportive Care

Related Conditions & MeSH terms

• Spinal Anesthesia

Intervention

Other:
• lateral decubitus position with full spinal flexion
The patients maintained the lateral decubitus position with the hips and back fully flexed for 15 minutes.
• lateral decubitus position without spinal flexion
the patients are allowed to straighten their flexed hips and back to obtain the normal lordotic curvature of spinal column

Locations

Country	Name	City	State
Korea, Republic of	Seoul national university hospital	Seoul

Sponsors (1)

Lead Sponsor	Collaborator
Seoul National University Hospital

Country where clinical trial is conducted

Korea, Republic of, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Time for the complete regression of pinprick spinal analgesia on the nondependent legs		Sensory and motor blockade were evaluated within 3 hour of intrathecal injection	No