Fig. 9From: Facet joint syndrome: from diagnosis to interventional managementFacet joint radiofrequency ablation. a: Radiofrequency ablation at the right L5-S1 level. Appropriate electrode placement (white arrow) parallel to the target nerve (white star) in order to achieve denervation along a substantial segment of the targeted nerve. b: 22G Radiofrequency needle showing uninsulated tipBack to article page