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What is the difference between posterior central protrusion and focal central protrusion of the disc?

hai doctor.i just got my MRI result. Could you please interpret for me? L5-S1: central annulus tears with focal central protrusion of disc. The central herniated disc compressed the Cauda Equina. Bulging disc also causing narrow neural foramina bilaterally resulting L5 existing nerve root impingement. what the different between posterior central protrusion and focal central protrusion disc?
Asked On : Fri, 29 Mar 2013
Answers:  1 Views:  87
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Neurologist 's  Response
There is a soft gelly like tissue present between two vertebral body which is the disc

A disc protrusion is a type of disc herniation characterised by protrusion of disc content beyond the normal confines of the intervertebral disc

Disc protrusions are further divided into:

broadbased : base involves between 90 and 180 degrees of the circumference
focal : base involves less than 90 degrees of the disc circumference

In case of focal central protrusion , focal and central part of disc is protruded

In case of posterior central protrusion , the central part of disc is protruded posteriorly ( back that is towards spine)

Hope you could understand

Answered: Tue, 11 Jun 2013
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