In continuing my blog entries on the lumbar spine and degenerative disc disease, I will answer some frequently asked questions by my patients.

 

What is lumbar degenerative disc disease?
Generally speaking, degenerative disc disease is the result of the normal aging process.  This is where the disc becomes more brittle and less flexible.  When the discs of the lower back are affected, this is referred to lumbar degenerative disc disease.  Often this results in lower back pain. 

  

What exactly are spinal discs?

 Technically called invertebral discs, spinal discs are discs found between each vertebrae that act as a cushion..  The spinal discs are what helps maintain the position of your spine, as well as allows motion between each vertebrae.  Sometimes they are called the “shock absorbers” of the spine - in that they compress with weight, and spring back when weight is removed. 

 

Anatomically, the discs are flat and round – and less than an inch thick.  The outer shell is a tough tissue and this is called the annulus fibrosis.  This tissue is filled with a jelly like consistency fluid that is called the nucleus pulposus.  Cartilage then connects the spinal discs to the vertebrae. 

 

So, do all old people have degenerative disc disease?

Even though degenerative disc disease is a part of the aging process, everyone ages differently and no - everyone does not get degenerative disc disease. 

 

In addition to aging, wear and tear can also cause degenerative disc disease.  There are many lifestyle factors that can affect the health of the spinal discs.  For example, for individuals who are over weight; this would increase the stress on the spine.  Additionally, someone who has a job that requires heavy lifting – this can increase their risk for degenerative disc disease.  In some instances, trauma can lead to degenerative disc disease – lumbar or cervical.