Article Figures & Data
Figures
- Fig 1.
Inadvertent intrafacet injection in an 84-year-old woman with back pain who underwent ILESI with CTF. A, Preinjection axial CTF image before needle placement into the ligamentum flavum. B, Initial CTF image obtained after loss of resistance shows contrast in the facet joint ipsilateral to the injection (arrow). Contrast also pools around the needle tip in the retrodural space of Okada and extends into the interspinous bursa (arrowhead). C, The needle was subsequently advanced through the ligamentum flavum. Contrast is now seen in the epidural space (arrow).
- Fig 2.
Inadvertent intrafacet injection in a 67-year-old man with spinal stenosis and back pain who underwent ILESI with CTF. A, Preinjection axial CTF image before needle placement into the ligamentum flavum. B, Initial CTF image obtained after loss of resistance shows contrast in the facet joint (white arrow). C, Image obtained after needle advancement shows contrast in the epidural space (arrowhead).
- Fig 3.
Inadvertent intrafacet injection in a 63-year-old man with a painful L4–5 central disc protrusion who underwent ILESI by using conventional fluoroscopic guidance. The final procedural image shows a triangular configuration of contrast overlying the inferior aspect of the left L4–5 facet joint, consistent with intrafacet injection.
