Angled posteroanterior fluoroscopy for L5-S1 discography: a technical note

Am J Orthop (Belle Mead NJ). 2007 Jul;36(7):380-1.

Abstract

Lumbar discography, a useful modality for evaluating patients with lower back pain, is performed under fluoroscopy with posteroanterior and lateral fluoroscopic imaging. Despite use of fluoroscopy, needle placement into the L5-S1 disc may be difficult, especially in the presence of degenerative changes. We describe use of angled posteroanterior fluoroscopy with the fluoroscopy beam directed 30 degrees to 40 degrees caudally in a prone patient for clear visualization of the L5-S1 disc space. Use of this radiographic view aids in accurate needle placement and might decrease both procedure duration and fluoroscopic exposition.

MeSH terms

  • Fluoroscopy / methods*
  • Humans
  • Intervertebral Disc / diagnostic imaging*
  • Lumbar Vertebrae / diagnostic imaging*
  • Sacrum / diagnostic imaging*