NCT05930236

Ultrasound-guided LMBB by Caudal-cranial Approach: Radiographic Comparison of a New Ultrasound-guided Method

Ultrasound-guided Medial Lumbar Bundle Branch Block by Caudal-cranial Approach: Radiographic Comparison of a New Ultrasound-guided Method

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 40 (estimated)
• Sponsor: Erasme University Hospital · Academic / Other
• Sex: All
• Age: 20 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

The current standard technique is radiography requiring three uni- or bilateral punctures (transverse-axial plane). The ultrasound technique is also described mainly in this plan but a new "caudal-cranial" ultrasound-guided technique was described by Chang et al in 2018 in which the major axis is used to conduct the needle to the desired area. The investigators would like to confirm that this new technique in a single puncture is also possible under ultrasound.

Detailed description

The convex probe is first positioned in the median longitudinal plane opposite the spinous processes of the lower lumbar vertebrae L4 and L5 with the coordinate system on the cranial side and the side opposite the mark on the sacrum side. The latter is visualized as a hyperechogenic continuous line. The probe is then moved away from the midline, the probe is slightly inclined in an oblique paramedian position looking towards the midline, and gradually slid towards laterality in order to reveal successively, the plane of the laminar interlines of the L3, L4 and L5 vertebrae, then the plane of the facelet spacing of these same vertebrae at the junction of the upper and lower articular processes, finally the plane of their transverse processes

Conditions

• Chronic Low-back Pain
• Lumbar Facet Joint Syndrome

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Lumbar medial branch block	The lumbar medial branch block on three lumbar levels (L3-L4, L4-L5 and L5-S1) will be performed by ultrasound-guidance in a longitudinal plane and the correct placement of the needle will be verified by radiography to show if the two modalities are equivalent.
DRUG	Lidocain	Linisol infiltration with depomedrol and omnipaque
DRUG	Methylprednisolone	infiltration with linisol and omnipaque
DRUG	Omnipaque	infiltration with linisol and methylprednisolone

Timeline

• Start date: 2023-04-21
• Primary completion: 2024-06-01
• Completion: 2024-06-01
• First posted: 2023-07-05
• Last updated: 2023-07-05

Locations

1 site across 1 country: Belgium