Comparison of Ganglion Impar Radiofrequency Ablation and Phenol Neurolysis Techniques for Chronic Coccydynia Treatment

Radiofrequency ablation and phenol neurolysis of the ganglion impar are methods used in cases unresponsive to medication, particularly in patients who derive short-term or partial relief from the initial ganglion impar block. In clinical practice, clinicians frequently use these two injections in patients with treatment-resistant pain who only partially benefit from the initial blockade procedure. To date, the medical literature lacks a comprehensive study comparing the efficacy of radiofrequency ablation and phenol neurolysis in patients who partially benefit from ganglion impar block. Therefore, this study is designed to compare the effectiveness of these two methods in patients with chronic coccydynia.

NCT Number	NCT07021365
Lead Sponsor	Marmara University
Conditions	Coccygodynia, Coccydynia
Enrollment	30 participants
Start Date	2025-07
Primary Completion	2025-11 (estimated)
Study Completion	2026-03 (estimated)
Updated on ClinicalTrials.gov	2025-06-17