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

Seoul National University Hospital32 enrolled

Overview

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.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

SUPPORTIVE_CARE

Masking

SINGLE

Enrollment

Conditions

Spinal Anesthesia

Interventions

lateral decubitus position with full spinal flexionOTHER

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

lateral decubitus position without spinal flexionOTHER

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

Eligibility

Sex: MALEMin age: 20 YearsMax age: 45 Years

Medical Language ↔ Plain English

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

Locations (1)

Seoul national university hospital

Seoul, South Korea

Outcomes

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

Data from ClinicalTrials.gov

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