Ultrasound‐Guided Coccygeal Nerve Radiofrequency Ablation and Steroid Injection: Combination Therapy for Coccydynia

Author:

Can Ezgi1ORCID,Yildiz Gokhan1ORCID,Akkaya Ömer Taylan1ORCID,Perdecioğlu Gevher Rabia Genç1ORCID,Yürük Damla1ORCID

Affiliation:

1. Department of Algology Ankara Etlik City Hospital Ankara Turkey

Abstract

ObjectivesCoccydynia is characterized by pain in tailbone region, which affects the quality of life. Various interventional procedures are performed for coccydynia that is unresponsive to conservative treatment. This study aimed to evaluate the efficacy of ultrasound (US)‐guided radiofrequency ablation (RFA) and steroid injection of the coccygeal nerve in patients with idiopathic and traumatic coccydynia.MethodsIn this prospective study, 32 patients with coccydynia unresponsive to conservative treatments underwent US‐guided RFA of the coccygeal nerve. Coccygeal nerves were visualized at the level of the coccygeal cornua with US, 1 mL lidocaine 2% was injected into both areas and radiofrequency ablation was performed at 90°C for 60 seconds. After RFA, 2 mL dexamethasone and 2 mL bupivacaine 0.5% were injected. Visual Analog Scale (VAS) and Paris scales were used to evaluate the effect of treatment on pain and functionality before and at 1, 4, and 12 weeks after treatment.ResultsWe found that 54% of the patients had a >50% reduction in VAS score and 66% of the patients had a >50% reduction in Paris scores measured between baseline and week 12. Additionally, the main effect of time on the VAS and Paris scores was statistically significant (P < .001) in all measurements. Baseline P and VAS scores were higher than the post‐treatment measurements (P < .001).ConclusionsOur study showed that US‐guided steroid injection and RFA of the coccygeal nerve for chronic coccydynia significantly improved pain and function scores at weeks 1, 4, and 12. RFA also results in a lower rate of adverse events. This study is the first clinical trial of ultrasound‐guided coccygeal nerve RFA in patients with coccydynia. We believe that this new less invasive method may be an alternative to other interventional treatments.

Publisher

Wiley

Subject

Radiology, Nuclear Medicine and imaging,Radiological and Ultrasound Technology

Reference15 articles.

1. Causes and Mechanisms of Common Coccydynia

2. Chronic coccydynia in adolescents. A series of 53 patients;Maigne JY;Eur J Phys Rehabil Med,2011

3. Radiofrequency ablation in coccydynia: a case series and comprehensive, evidence‐based review;Chen Y;Pain Med,2017

4. Coccydynia: anatomic origin and considerations regarding the effectiveness of injections for pain management

5. Ultrasound Imaging and Ultrasound-Guided Injection of the Coccygeal Nerve for Coccydynia

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