None listed
Conditions
Brief summary
We are aiming to find a more effective and long lasting technique in the management of pain originating from lumbar facet joints. We will be comparing the bipolar radiofrequency ablation at two points versus conventional technique of monopolar radiofrequency ablation at one point
Interventions
Patients will be under one of the two procedures according to the randomization. All patients will have the procedure once only by aqualified anesthetist specialized in pain management under fluoroscopic guidance with use of Cosman RF generator G4TM, 20 gauge curved sharp cannula, 10 cm shaft, 10 mm tip and 10 cm electrodes (Cosman autoclavable CSK-TC10). 1. Group 1: Thirty patients....Two RF needles are inserted at transverse process(10 mm distance is kept between the two needles). After sensory and motor stimulation for both sites, bipolar lesion RF at 80 degrees Celsius for 90 sec will be applied. 2. Group 2: Thirty patients.....One needle will be inserted at the transverse process. After sensory and motor stimulation, monopolar lesion RF at 80 degrees Celsius for 90 sec will be applied.
Sponsors
Study design
Eligibility
Inclusion criteria
*18 years old or older. *Moderate-to-severe low back pain for more than six months with tenderness over lumbar fact joint. *Pain is not responding to the usual medical treatment. *More than 50 % pain relief after diagnostic injection with local anesthetic.
Exclusion criteria
*Patient refusal to do the procedure or to share in the study. *Focal Neurologic Signs. *Significant anticoagulation e.g.clopedogril(low-dose aspirin will be excluded). *Pregnancy, breast feeding or planning on becoming pregnant during the trial. *Infection at the intended injection site.