Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. [[isthmic spondylolisthesis]] AKA [[spondylolysis]]: a failure of the neural arch as a result of a defect in the [[pars interarticularis]] (identifiable as a discontinuity in the neck of the “[[Scotty dog]]” on oblique LS-spine x-ray). May be seen in 5–20% of spine x-rays ((Frymoyer JW. Back Pain and Sciatica. N Engl J Med. 1988; 318:291–300)). Rarely produces central [[spinal canal stenosis]] since only the anterior part of the vertebral body shifts forward. May cause narrowing of the [[neural foramen]]. scotty_dog.txt Last modified: 2024/06/07 02:52by 127.0.0.1