Fluoroscopic Guided Interlaminar Epidural Versus Ultrasound Guided Transforaminal Epidural in the Treatment of Unilateral Cervicobrachialgia.

Chronic cervicobrachialgia is a public health problem. Epidural injections of corticosteroids and local anesthesics via transforaminal and interlaminar routes both have shown their potential in its treatment. The interlaminar approach offers the advantage of an epidural injection (i.e., direct contact with the nerve root in the epidural space). However, it requires fluoroscopy and can lead to potentially serious complications (compression of the nerve root, spinal cord injury...). The ultrasound-guided injection of corticosteroids via the transforaminal route, which offers the advantage of selectively targeting the symptomatic nerve root, may have the same therapeutic advantages as the interlaminar approach in decreasing unilateral cervicobrachial pain (i.e. a decrease in pain after infiltration) and reduce its risks.The aim of this study is to compare the efficacy of transforaminal vs interlaminar cervical corticosteroid injection.