Acta Radiologica Open | VOL. 11
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“GatorSign” for severe lumbar spinal canal stenosis: Magnetic resonance imaging evidence of lumbar perineural edema in the central canal

Publication Date Jul 1, 2022

Abstract

Lumbar spinal stenosis is one of the most commonly diagnosed pathological conditions of the spine. Patients with lumbar spinal stenosis can be symptomatic or asymptomatic. Regardless of the clinical presentation, a combination of radiological imaging modalities including magnetic resonance imaging, CT, and dynamic X-rays can be used to evaluate the severity. An often underrecognized aspect of severe lumbar spinal stenosis is its effect on nerve roots. We propose coining the term “GatorSign” to describe nerve root edema above the area of severe central canal stenosis. This radiological finding can help identify patients with severe central canal stenosis in patients who would likely be neurologically symptomatic, requiring an invasive intervention such as epidural injections or surgical decompression for relief as conservative treatments such as physical therapy and/or medications are less likely to be effective.

Concepts

Lumbar Spinal Stenosis Severe Central Canal Stenosis Severe Lumbar Spinal Stenosis Canal Stenosis In Patients Severe Spinal Stenosis Severe Stenosis Dynamic X-rays Severe Spinal Canal Stenosis Canal Stenosis Central Canal

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