• Ozlem Sagir, Hafize Fisun Demir, Fatih Ugun, and Bulent Atik.
• Department of Anesthesiology, Balıkesir University Health Application and Research Hospital, 10100, Balikesir, Turkey. ozlemsagir@yahoo.com.
• BMC Anesthesiol. 2020 May 11; 20 (1): 110.

BackgroundWe aimed to evaluate pain scores one year after impar ganglion block in patients with coccydynia who did not benefit from conservative treatment.MethodsThe medical records of 29 patients with coccydynia were reviewed. Patients who were referred to the algology clinic and underwent impar ganglion blocks were retrospectively evaluated. Demographic data, time to the onset of pain, causes of pain, X-ray findings, administered invasive procedures, and visual analog scale (pain) scores were recorded.ResultsA total of 29 patients were included in the study, 10 males (34%) and 19 females (66%). The average age and body mass index were 53.45 ± 9.6 and 29.55 ± 4.21 respectively. In 21 patients, the onset of pain was associated with trauma. Nineteen patients (65.5%) had anterior coccygeal angulation. The average visual analog scale score before undergoing an impar ganglion block was 7.4 ± 1. After the procedure, the scores at < 3 months, 3-6 months and 6 months-1 year follow-up intervals were significantly lower (p < 0.05). Furthermore, visual analog scale scores at the 3-6 months and 6 months-1 year periods were significantly lower in patients who received diagnostic blocks plus pulse radiofrequency thermocoagulation than in patients who underwent a diagnostic block only.ConclusionsThe impar ganglion block provides effective analgesia without complications in patients with coccydynia. Pulse radiofrequency thermocoagulation combined with a diagnostic block prolongs the analgesic effect of the procedure.

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