Lumbar Degenerative Disc Disease
Lumber Degenerative disc disease (DDD) is the natural breakdown of an intervertebral disc of the spine. An intervertebral disc sits between each pair of vertebrae. The intervertebral disc is made of connective tissue. The disc normally works like a shock absorber. It protects the spine against the daily pull of gravity. It also protects the spine during strenuous activities that put strong force on the spine, such as jumping, running, and lifting.
An intervertebral disc is made of two parts. The center, called the nucleus, is spongy. It provides most of the disc’s ability to absorb shock. The nucleus is held in place by the annulus, a series of strong ligament rings surrounding it.
Disc degeneration follows a predictable pattern. First, the nucleus in the center of the disc begins to lose its ability to absorb water. The disc becomes dehydrated. Then the nucleus becomes thick and fibrous, so that it looks much the same as the annulus. As a result, the nucleus isn’t able to absorb shock as well.