What Does "subtle Flattening Of The Ventral Margin Of The Cord" Mean?

I was in a auto accident May 21st 2011 I have C5-6 demonstrates a moderate broad-based disc bulge which effaces ventral margin of the thecal sac and abuts the ventral margin of the cord. There may be subtle flattening of the ventral margin of the cord. There is no significant posterior displacement. The neuroforamina remain patent and facets are normal. What does this mean?