PRF Treatment for Patients With Chronic Lumbosacral Radicular Pain Compared to Conventional Medical Management

Study Overview
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Brief Summary
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The purpose of the study is to evaluate the effect of PRF treatment adjacent to the lumbar dorsal root ganglion (DRG) of L5 or S1 in patients with a chronic lumbosacral radicular syndrome (LRS). Prospective, single blinded, multicenter clinical trial.

Official Title
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Pulsed Radiofrequency Treatment of the Lumbar Dorsal Root Ganglion for Patients With Chronic Lumbosacral Radicular Pain

Conditions
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Lumbosacral Radicular Syndrome

Intervention / Treatment
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* Other: Pulsed Radiofrequency


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Symptoms more than 3 months 18,48 Optimized conventional medical management at least for 1 month Pain radiating into the leg, up to the hallux (big toe) (L5) or little toe (S1) The pain in the leg dominates over a possible lumbalgia, the average pain in the leg measured 3 times a day, at predefined time points, over 4 consecutive days prior to inclusion should be more than 5 (NRS 10-point scale) 8 Pattern of radiation suggestive for L5 or S1 pathology 49,50 One or more positive neurological tests of nerve root tension or neurological deficit 51 ; straight leg raising test (SLRT), contralateral SLRT, motor reaction during SLRT and passive cervical flexion, motor reaction during passive cervical flexion while bending forward in standing position Capable of understanding the information relative to the treatment and procedure and willing to provide informed consent Capable of understanding and filling-out the questionnaires necessary for evaluation of the treatments Patients having undergone low back surgery like discectomy with or without laminectomy are allowed to participate in the study Exclusion Criteria: Patients younger than 18 years Malignant disorder or currently under treatment for a malignant disorder Previous lumbar fractures Proven myelum lesion or abnormalities in the central neurological structures Systemic or connective tissue diseases Diabetes mellitus type I Multiple sclerosis Coagulation disorders Pregnancy Conventional medical management less then 1 month Pain Catastrophizing Scale > 45. When the patient has a higher score he/she will first be referred to a psychologist for consultation 52 Leg pain due to localized hip or knee pathology Patients with a pacemaker or neurostimulator Patients previously treated with RF or PRF of the lumbar DRG

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Pain reduction<br> | Other: Pulsed Radiofrequency<br>* Pulsed Radiofrequency<br>* Other names: PRF;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain reduction |  | 2 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Quality of life |  | 2 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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NRS, GPE, pain reduction, quality of life