Evaluation of CT-guided periganglionic foraminal steroid injections for treatment of radicular pain in patients with foraminal stenosis

Purpose. To evaluate the efficacy of foraminal steroid injections performed under CT guidance for the management of radicular pain. Methods. Periganglionic infiltrations were performed in 160 patients with radicular pain refractory to medical treatment. Imaging showed either degenerative foraminal stenosis, herniated disk or postsurgical fibrosis. Results. 102 patients (63.8%) had significant pain reduction. Pain relief was lasting in 68 (66.6%). CT showed the position of the needle tip, as well as the diffusion of the therapeutic compounds. Conclusion. We consider that CT-guided periganglionic steroid injections should be an integral part of the management strategy for radicular pain resistant to medical treatment.