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

P2023/034

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.

2023-04-21

2024-06-01

2024-06-01

Recruiting

40

Inclusion Criteria: * chronic low back pain compatible with facet lumbar syndrome with chronic pain of at least 3 months * who have not responded to conservative treatment after at least 4 weeks * patients without signs of dissociated pain, radiculitis, neurological diseases including stroke and Parkinson's disease, spinal instability or deformities such as scoliosis, ankylosing spondylitis, history of lumbar surgery, fracture or lumbar tumor Exclusion Criteria: * Pregnant or breastfeeding women * Allergy to injected products (Depomedrol or Linisol) * Psychiatric disorders hindering understanding of the protocol * Local or systemic infection * Coagulation disorder * Obese with a BMI\> 35 kg / m²

{'studyType': 'INTERVENTIONAL', 'phases': ['NA'], 'designInfo': {'allocation': 'NA', 'interventionModel': 'SINGLE_GROUP', 'interventionModelDescription': 'the medial branch block on three lumbar levels (L3-L4, L4-L5 and L5-S1) will be performed under ultrasound by "caudal-cranial" approach, followed by an X-ray check to verify the positioning of the needle.', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'NONE'}}, 'enrollmentInfo': {'count': 40, 'type': 'ESTIMATED'}}

2023-07-05