An observational study in RADICULAR PAIN, sponsored by Ankara City Hospital Bilkent. Completed at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-08.
Sponsored by Ankara City Hospital Bilkent · Observational
Brief Summary:
This study aims to compare the efficacy of short-duration (240 sec) and long-duration (480 sec) pulsed radiofrequency (PRF) applications on pain, functionality, patient satisfaction, and side effect profiles in patients with lumbosacral radicular pain. The PRF procedure will be applied to the dorsal root ganglion (DRG) under fluoroscopic guidance.
In this study, all procedures will be performed in the prone position under sterile conditions and guided by fluoroscopy. After identifying anatomical landmarks, the cannula will be positioned close to the dorsal root ganglion. The tip of the cannula will be placed in the dorsal-cranial quadrant of the intervertebral foramen in the lateral view, and between one-third and halfway along the pedicle column in the anteroposterior view. Once the RF cannula is properly positioned, an RF electrode will be inserted through the cannula and connected to the RF generator. The final position of the RF cannula will be confirmed by sensory stimulation (paresthesia) at less than 0.5 V and motor stimulation perceived at a level at least 1.5 times greater than the sensory stimulation threshold.
In the short-duration PRF group, a PRF cycle will be applied at 42°C for 240 seconds, while in the long-duration group, it will be applied at 42°C for 480 seconds. Following the PRF application, epidural spread will be confirmed using contrast dye, after which 4 mL of a solution containing 8 mg dexamethasone and 5 mg bupivacaine will be injected at each level.
Ankara City Hospital Bilkent is the lead sponsor of 424 studies on the registry; 105 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Patients to undergo DRG PRF for lumbar radicular pain in bilkent city hospital algology clinic
Inclusion Criteria:
Age ≥ 18 years
patients with lumbosacral radicular pain resistant to conservative treatments
Procedure: The duration of the intervention will be 240 seconds · Procedure: Dorsal Root Ganglion pulsed radiofrequency 480sec
Dorsal Root Ganglion pulsed radiofrequency 240sec
The duration of the intervention will be 480 seconds
Numeric rating scale on pain severity (0 = no pain, 10 = unbearable pain))
Change in pain severity
Time frame: 1, 3, and 6 months
Global perceived effect (GPE)
Change in GPE scores according to the 7-point Likert scale (1=worst, 7=best) over time will be used to assess patient satisfaction and improvement
Time frame: 1, 3, and 6 months
Oswetry disability index (ODI)
Change in 10-item Oswestry disability index (ODI) questionnaire (range: 0-100; 0 = no disablility) over time will be used to assess physical function
Time frame: 0, 1, 3, and 6 months
Patient satisfaction
Change in Patient satisfaction (5-point Likert scale, 0= very disappointed, 5=very satisfied) over time will be used
Time frame: 1, 3, and 6 months
Change in analgesic use
Change in analgesic use over time (0=same, 1=decreased, 2=increased)
Time frame: 1, 3, and 6 months
Plan to share: No — ı don't want
This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.
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Ankara City Hospital Bilkent