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http://blog.vetbloom.com/neurology/diag ... ment-ivdd/ wrote:Hansen Type III discs are sometimes referred to as “missile discs”, “traumatic disc” or “low volume, high velocity”. These are non-surgical and result from the liquid nucleus pulposus hitting the spinal cord at high impact. There is no resulting compression as the material dissipates, but the cord experiences contusive injury.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4672181/ wrote:Acute non-compressive nucleus pulposus extrusion refers to the extrusion of hydrated nucleus pulposus due to a sudden increase in intradiscal pressure during vigorous exercise (such as running and jumping) or trauma (18). The hydrated nucleus pulposus herniates through a tear in the annulus fibrosus contuses the spinal cord and then dissipates within the epidural space causing minimal to no spinal cord compression. This condition has also been named as traumatic disk extrusion, traumatic disk prolapse, dorsolateral intervertebral disk “explosion,” high-velocity–low volume disk extrusion, exercise-associated peracute thoracolumbar disk extrusion, and Hansen type III intervertebral disk disease (14–17, 19). The terminology “Hansen type III intervertebral disk disease” or “type III intervertebral disk extrusion” should not be used to indicate extrusion of hydrated nucleus pulposus, resulting in non-compressive myelopathy (39). Hansen described only two types of intervertebral disk degeneration, resulting in type I and type II intervertebral disk herniation, respectively (38, 39). Type III IVDEs were originally described by Funquist as a subtype of Hansen type I intervertebral disk degeneration and herniation characterized by extension of disk material “like a carpet over several vertebrae”
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