Effectiveness of two radiofrequency-based nerve treatments for chronic low back pain: A comparative study

Parasagittal vs. Conventional approach for medial branch radiofrequency thermocoagulation in lumbar facet syndromes: A randomized clinical trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

CRIS

Registry ID

KCT0010670

Enrollment

Registered

2025-06-24

Start date

2025-07-21

Completion date

Unknown

Last updated

2025-07-21

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

Conditions

None listed

Interventions

Procedure/Surgery : Parasagittal Approach Group After aligning the vertebral endplates to be parallel on the anteroposterior (AP) fluoroscopic view, the mammillary process, mamillo-accessory notch (MA

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Adult patients aged between 20 and 80 years 2. Patients with unilateral or bilateral axial low back pain persisting for more than 3 months 3. Patients with a numeric rating scale (NRS) score of 5 or higher despite conservative treatments (e.g., physical therapy, oral analgesics) 4. Patients who showed significant pain relief following two diagnostic medial branch blocks 5. Patients who have provided informed consent to participate in the study

Exclusion criteria

Exclusion criteria: 1. Patients who do not consent to participate in the study 2. Patients with neurological signs or symptoms 3. Patients with radiating pain to the lower limbs (lumbar radiculopathy) 4. Patients with local or systemic infection at the procedure site 5. Patients with a bleeding tendency or other coagulopathies 6. Patients with a history of lumbar fusion surgery 7. Patients with a Cobb angle greater than 10 degrees 8. Patients with a history of allergy to local anesthetics or steroids 9. Patients with systemic chronic pain disorders such as fibromyalgia 10. Patients with a history of lumbar medial branch radiofrequency ablation 11. Patients with clinically significant depression, anxiety disorders, or psychotic symptoms 12. Pregnant women or women who may be pregnant 13. Patients receiving a morphine equivalent daily dose (MEDD) greater than 50 mg

Design outcomes

Primary

Measure	Time frame
The proportion of patients with a =50% reduction in low back pain NRS at 3 months post-procedure.	—

Secondary

Measure	Time frame
Backpain Numeric Rating Scale;Korean version of the Roland-Morris disability questionnaire (RMDQ);Type and dose of pain medication;Patient global impression of changes	—

Countries

Korea, Republic of

Contacts

Public ContactJoon Hee Lee

Seoul National University Bundang Hospital

j00nh22@gmail.com+82-31-787-2765

Outcome results