Which Approach to Favor for Ultrasound-guided Lumbar Plexus Block (BPLE). Comparative Study.

Completed

• Conditions: Volunteers

• Registration Number: NCT05760963
• Lead Sponsor: Centre Hospitalier Universitaire de Saint Etienne

Brief Summary

Lumbar plexus block is described as a difficult block, thus requiring experienced practitioners. Many techniques have been used to date, notably anatomical landmarks, neurostimulation, and ultrasound-guided techniques. Among ultrasound-guided techniques, the "Trident" technique was described in 2006, while the "Shamrock" technique was described in 2013. Trident consists in putting the probe sagittally next to the lumbar spine and injecting local anesthetic around the lumbar plexus inside the psoas muscle at the level of L4. It is an out-of-plane puncture.

Shamrock puts the probe transversely on the iliac crest. Authors of the 2013 article said the image obtained with this technique was an image of L4. This technique allows an in-plane puncture, which is a safe technique.

Detailed Description

This study aims at describing the level obtained with Shamrock, as well as at comparing depth of lumbar plexus, image quality and presence of vessels between the two techniques.

Study Timeline

• Study Start: 2019-01-01
• Primary Completion: 2019-04-01
• Study Completion: 2019-04-01
• Status Verified: 2021-04
• Study First Submitted: 2023-02-27
• Study First Submitted QC: 2023-02-27
• Last Update Submitted: 2023-02-27
• Study First Posted: 2023-03-09
• Last Update Posted: 2023-03-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Adult with indication of lumbar echography

Exclusion Criteria

• Antecedent of spine surgery or spinal malformation

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Projection of line C on the costiform processes	Day: 0	Analysis by trident techniques results.

Secondary Outcome Measures

Name	Time	Method
image quality	Day: 0	Analysis by trident and shamrock techniques results.
presence of vessels	Day: 0	Analysis by trident and shamrock techniques results.
Depth of lumbar plexus	Day: 0	Analysis by trident and shamrock techniques results.

Trial Locations

Locations (1)

CHU Saint-Etienne; 🇫🇷 Saint-Étienne, France