What is degenerative disc disease?
Degenerative disc disease is one of the most common causes of low back pain. Disc degeneration is a natural part of ageing and over time all people will exhibit changes in their intervertebral discs. However, not everyone will develop symptoms.
While the degeneration will progress, the low back pain and other symptoms do not always get worse with this progression. Although low back pain from this disease usually gets better over time, some patients can develop chronic back pain.
What causes the pain?
The lumbar disc has a firm tough outer layer and a “jelly like” centre. This soft centre contains a great deal of inflammatory proteins. If any of these proteins leak out of the disc and come in contact with a nerve root it can create pain down the leg. If the tough outer layer becomes damaged or worn down it does not work as an effective stabiliser. The combination of inflammation and instability can cause muscle spasm in the lower back. With continued disc degeneration all the inflammatory proteins in the centre of the disc disappear, and the disc will become stiffer. If affected individuals can effectively manage their pain and maintain their mobility the natural history is quite favourable in that many individuals will improve over time without specific treatment. It is not clear why some degenerative discs are painful and some are not.
Types of pain
Chronic low back pain with intermittent episodes of severe acute low back pain
Severe episodes will generally last from a few days to a couple of months when there is a return of chronic low back pain
There may be leg pain, numbness and tingling
Low back pain generally made worse with sitting
Certain types of activity will usually worsen the low back pain, especially bending, lifting and twisting
Walking may actually feel better than prolonged sitting or standing
Frequent position changes are usually more comfortable
Specific exercise programmes
Hot and/or cold packs
Analgesic and anti-inflammatory medications
Physiotherapy, chiropractic or massage treatment may be beneficial
Surgery may be considered if the patients pain cannot be controlled or
patient is becoming disabled