Devoted to diagnostic and interventional spine imaging and therapeutics


CT-guided periganglionic block in patients with lumbar spinal stenosis and disc herniation 2011

Interventional Spine

Mi Sook, Sung, M.D., Phd, Professor
Jung Eun, Choi, M.D., Non ASSR Member
Wong Jong, Yoo, M.D., Non ASSR Member
Myung Hee, Chung, M.D., Non ASSR Member



The aim of this study was to evaluate the relative effectiveness of periganglionic block on CT-guidance and to evaluate the factors which affect the long-term effectiveness of periganglionic block.

Methods & Materials

We retrospectively reviewed 77 patients (113 cases) who had CT-guided periganglionic nerve block for radicular pain. Repeated block was performed in 31 patients; two times in 28, three times in two, and five in one. All patients underwent CT or MRI before procedure. We performed CT-guided periganglionic block with lidocain and steroid. The effectiveness of the treatment was evaluated as the percentage of pain decrease; none, good, excellent, and complete. Follow-up was monitored by personal interview or phone follow-up on day one and at months 1, 3, 6, 12, 36 up to 60 after injection. Follow-up period was less than 6 months (n=16), 6-12 months (n=23), 12-36 months (n=11), 60 months (n=1). Twelve of 77 patients were lost on follow-up. Then the 65 patients form the subject of this study. We classified the patients into two groups; spinal stenosis in 49 and disk herniation in 16. We compared wth patientsâ