Fig. 2From: Pulsed radiofrequency in the management of lumbar radicular pain: initial experienceA 33-year-old male suffering right L4 due to a disc compromise of the lateral recess and L4 foramen: a sagittal image showing right L4 foramen compromise, b axial image, c antro-posterior view of bipolar PRF cannulas inserted above and below the L4 root. d Lateral view of bipolar PRF cannulas inserted above and below the L4 rootBack to article page