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Radiofrequency (RF) ablation for the treatment of chronic lumbar facets arthropathy; comparing the use of bipolar RF at two points versus monopolar RF at one point

Radiofrequency (RF) ablation for the treatment of chronic lumbar facets arthropathy; comparing the use of bipolar RF at two points versus monopolar RF at one point

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12615000426583
Enrollment
60
Registered
2015-05-05
Start date
2015-02-03
Completion date
2015-08-04
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

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 sen

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

king Hamad university hospital
Lead SponsorHospital

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

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.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026