Lomber dorsal root ganglion pRF is an interventional treatment options in the treatment of lumbar radicular pain. The goal of this study is to investigate the effect of sensory threshold outcomes on pain severity during dorsal root ganglion pulsed radiofrequency (DRG-pRF). It will also learn effects about disability due to chronic LRP. The main questions it aims to answer are:
Does lower sensory threshold result in lower pain scores and chronic LRP related disability?
Participants will:
Take DRG-pRF procedure for 4 minutes. Visit the clinic at 1. and 3. month for questionnaries.
None
None
Candidates who visited algology clinic of Ankara University Medicine Faculty Hospitals to DRG-pRF prodecure for chronic LRP.
Case-only
Prospective
Dorsal Root Ganglion Pulsed Radiofrequency
Procedure/SurgeryUsing C-arm fluoroscopy, a 22G, 10 cm RF needle with a 5 mm active tip will be directed from lateral to medial towards the vertebral foramen. Once the needle reaches the lateral edge of the pedicle shadow, the C-arm will be adjusted to a lateral view to confirm that the needle is located at the craniodorsal portion of the intervertebral foramen. Sensory stimulation will be delivered through the RF generator at 50 Hz, and paresthesia will be sought in the corresponding dermatome at values between 0.4-0.8 mA. After achieving paresthesia, motor stimulation at 2 Hz will be applied, and the location near the DRG will be confirmed if motor stimulation is not elicited at values less than 1.5 times the sensory threshold. Pulsed RF will then be applied for 4 minutes at a setting of 45 V, 20 ms pulse width, and 2 Hz frequency. Following the application, needle will be directed slightly anterior and after appropriate contrast flow, dexamethasone will be injected.
Postprocedure pain severity at 3th month
Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at 3 months after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain.
Postprocedure pain severity at 30. min
Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at 30. min after interventions at bedside. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain.
Postprocedure first month pain severity
Severity of pain will be assessed with Numeric Rating Scale (NRS-11) at 1 month after interventions. NRS-11 is a 11 point likert type scale. Higher scores represent more severe pain.
Postprocedure first month OSWESTRY scores
Disability will be assessed with OSWESTRY Diasability Index at 1 month. OSWESTRY measures pain related lumbar disability. It has 0 minimum and 100 maximum value. Lower scores represent better outcomes.
Postprocedure 3th month OSWESTRY scores
Disability will be assessed with OSWESTRY Diasability Index at 3 month. OSWESTRY measures pain related lumbar disability. It has 0 minimum and 100 maximum value. Lower scores represent better outcomes.
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options:
