Ultrasound Image Study for Ultrasound-assisted Paramedian Spinal Anesthesia

Ultrasound Image Study for Ultrasound-assisted Paramedian Spinal Anesthesia: Difference in Sidedness of Approach, Position and Age

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03929874

Enrollment

Registered

2019-04-29

Start date

2019-05-02

Completion date

2019-06-30

Last updated

2019-07-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anesthesia, Spinal, Position, Sidedness, Ultrasonography

Brief summary

This prospective observational study aimed to obtain ultrasound images for ultrasound-assisted paramedian spinal anesthesia and identify the differences according to sidedness of approach, position and age.

Interventions

None listed

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* Patients under 40 or over 60 years of age who require spinal anesthesia for orthopedic surgery, * with ASA physical status classification system I, II, III

Exclusion criteria

* Patients with contraindication to spinal anesthesia (coagulopathy, local infection, allergy to local anesthetic) * Patients with communication difficulties * Patient who can not take a sitting or lateral decubitus position (fracture) * Patients with a history of spinal surgery * Patient with anatomical abnormality of the spine

Design outcomes

Primary

Measure	Time frame	Description
Ultrasonic visualization grading at left L3-4, L4-5, L5-S1 interspace and right L3-4, L4-5, L5-S1 interspace in lateral decubitus position and sitting position	Preanesthesia	* Good: Both LFD (ligamentum flavum-dura mater complex) and PLL (posterior longitudinal ligament) are visible * Intermediate: Only one of LFD or PLL is visible * Poor: LFD and PLL are not visible
Distance between the midline and the expected location of needle insertion	Preanesthesia	Distance between the midline of the vertebrae and the expected location of needle insertion at left L3-4, L4-5, L5-S1 interspace and right L3-4, L4-5, L5-S1 interspace in lateral decubitus position and sitting position
Height of LFD through interlaminar space	Preanesthesia	Height of LFD through interlaminar space visible in ultrasound image at left L3-4, L4-5, L5-S1 interspace and right L3-4, L4-5, L5-S1 interspace in lateral decubitus position and sitting position
Depth from skin to LFD	Preanesthesia	The depth from skin to LFD at left L3-4, L4-5, L5-S1 interspace and right L3-4, L4-5, L5-S1 interspace in lateral decubitus position and sitting position
Depth from skin to PLL	Preanesthesia	The depth from skin to PLL at left L3-4, L4-5, L5-S1 interspace and right L3-4, L4-5, L5-S1 interspace in lateral decubitus position and sitting position
Width of the intrathecal space	Preanesthesia	The distance between the LFD and the PLL at left L3-4, L4-5, L5-S1 interspace and right L3-4, L4-5, L5-S1 interspace in lateral decubitus position and sitting position

Countries

South Korea

Outcome results