Clonidine as an Adjuvant in Fluoroscopic-guided Transforaminal Epidural Steroid Injection in a Patient of Chronic Lumbosacral Radiculopathy

Transforaminal epidural steroid injection (TFESI) is a minimally invasive modality used to treat patients with lumbosacral radiculopathy secondary to prolapsed intervertebral disc or spinal canal stenosis. In this case report, we describe the management of a patient with chronic lumbosacral radiculopathy secondary to intervertebral disc herniation which was seen as a right paracentral disc protrusion at levels L4-L5, L5-S1 causing thecal sac indentation, effacement of the right lateral recess and right exiting nerve root impingement as was seen on the magnetic resonance image. Diffuse disc bulge at levels L4-L5 and L5-S1 caused thecal sac indentation with right neural foraminal narrowing. There was no evidence of associated facet joint arthropathy. Owing to the persistence of symptoms for >6 weeks despite medicines and an ESI through the caudal route 4 weeks back, anticipation of efficacy of TFESI with methylprednisolone using clonidine as an adjuvant in our patient was justifiable.