HUMB2009 Study Guide - Midterm Guide: Paraplegia, Osteophyte, Supraspinous Ligament

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Chronic pain due to spinal nerves being compressed. Nerve pain that travels the length of a nerve or radiates to the extremities. Displacement of intervertebral disc material beyond the normal confines of the disc. Np gets dehydrated, loses fluid and becomes very easy to suffer damage and fluid spreads around. Disc loses flexibility and it is easier to suffer a rupture. Nucleus pulpous is leaking but the annulus remains intact. Complete annular tear with np moving beyond disc annulus but the np remains intact. When there is a free disc fragment, np is displaced away from the sit of extrusion and can affect the medulla. Complete annular tear with passage of np beyond disc annulus. If the disc space is black = no fluid (hypodense) Adjacent intervertebral discs are hyperdense = fluid. Caudal migration contents moving inferiorly and compressing on the contents of the medulla. Normal disc has a grey color on a ct.

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