Disc Protrusion

Anterior Disc Protrusion

An anterior disc protrusion occurs when the inner part of the disc (the nucleus pulposus) bulges into the front part of the outer ring (the annulus fibrosus). This makes it the exact opposite of the posterior disc protrusion, where the disc wedges itself backwards. Anterior protrusions are not as common as posterior bulges and are […]

Share

Midline Disc Protrusion

A midline disc protrusion, also called central disc protrusion, usually occurs at the lower back and is mostly painful, since it typically impinges the nerve root directly. The technical word midline is used to specify the position of the protrusion in relation to the disc. Hence in this case, the bulge is located toward the […]

Share

Paramedian Disc Protrusion

Again, the medical term paramedian disc protrusion solely specifies the location of the protrusion in relation to the disc. When the bulge is occurring between the midline and the side of the disc, the condition is considered a paramedian disc protrusion. As the affected disc does not press directly on the nerve root, a paramedian […]

Share

Broad Based Disc Protrusion

A disc protrusion that encompasses more than 25% and up to 50% of the circumference of the disc itself, is called broad based disc protrusion. So basically the term “broad based” only refers to the actual size of the bulge and nothing else. It does not mean that having a broad based disc protrusion is […]

Share

Focal Disc Protrusion

A focal disc protrusion is in a way the opposite of a broad based disc protrusion when it comes to both its classification and to some degree its severity. A disc protrusion is called focal, when the actual bulge has a very small size, more precisely less than 25% of the circumference of the entire […]

Share