We report a case of refractory buttock pain after tailbone abscess surgery treated with spinal cord stimulation at the level of the thoracolumbar vertebral transition (SCS trial). The patient was a 24-year-old woman. She had persistent pain in her buttocks and lower limbs after surgery for a coccygeal abscess. She was referred to our department for SCS trial. During the SCS trial, oxycodone was tapered off and replaced with tramadol. This case suggests that SCS at the level of the thoracolumbar vertebral transition may be a therapeutic modality for refractory tailbone pain.

Nerve blocks as well as percutaneous nucleotomy (PN) is sometimes chosen for patients with cervical disc herniation. Trigger-Flex^TM Dart Bipolar system (Dart Bipolar) is a new therapeutic modality for PN, but its clinical evaluation has not been reported. We underwent PN utilizing Dart Bipolar for 4 patients (5 disks) in clinic with bed between April 2020 and March 2021. Visual analogue scale (VAS) was obtained before PN, just after, 1 and 6 months after the procedure. Although 3 disks achieved pain-free state, the pain did not improve in 2 moderate degenerated disks. There was no complication. Dart Bipolar has small diameter and its procedure is very simple compared to existing therapeutic modalities.