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Degenerative Disc Disease (DDD)

Common cause of lower back pain

Degenerative Disc Disease (DDD) is weakening and breakdown of one or more vertebral discs, a structure that sits between the bones in the spine to provide cushioning and allow movement between the spine levels. This condition can develop as a natural part of the aging process, but it may also result from injury. Even though “disease” is in the name, this process is local wear and tear of the spine and is not a part of a systemic illness. DDD most often occurs in the low back, or lumbar spine, but can affect the neck and mid-back as well.

Contact National Spine & Pain Centers to schedule an appointment with an affiliated pain specialist for Degenerative Disc Disease (DDD) treatment today.

How Degenerative Disc Disease Progresses?

The nucleus pulposus (the inner cushioning)

Degenerative disc disease typically begins with reduction in the inner part of the disc, known as the nucleus pulposus. The nucleus pulposus is a gel-like substance that is flexible and absorbs shock. The disc is often compared to a jelly donut, with the jelly being the nucleus material. Disc degeneration is the process of having less of this nucleus material (less jelly) as well as a change of the material to be more rigid and less flexible (jelly loses water content and becomes more firm). With DDD, the height of the disc is reduced and so are the motion and cushioning between the spinal levels. With less shock absorption between the spine levels, more forces are passed on to the bone, causing swelling and inflammation.

The annulus (disc wall)

The outer part of the disc is called the annulus fibrosis, which is a dense band of fibrous material that contains the inner gel. Small tears, called annular tears, can appear in the disc wall as a result of repetitive stress or a sudden injury. The tears can result in the gel material leaking out of the disc. Because there are nerves in the outer part of disc wall, annular tears can also cause pain. The tears can heal, creating scar tissue that is not as strong as the original disc wall. If the back is repeatedly injured, the process of tearing and scarring may continue, weakening the disc wall.

Spine level degeneration – secondary effects of DDD

Unable to act as a cushion, the disc is no longer able to perform its functions of absorbing shock and allowing movement between spine segments. The vertebrae above and below this damaged disc slide closer together. This causes the space for the nerves to exit the spine, known as the foramen, to become narrowed and pinch on the spinal nerves. The facet joints – the areas where the vertebral bones come together, also can become misaligned, resulting in stiffness and pain.

In time, the compressed positioning of the vertebrae can create bone spurs in response to the stresses that occur with having less gel-like cushioning of the disc. The spurs may also reduce segmental motion of the disc and joints at a certain spinal level. The stiff spinal level will pass on more forces to an adjacent level.

Symptoms of DDD

The two main symptoms of DDD are pain and stiffness in spinal levels affected. The stiffness is often worse after prolonged sitting or standing, and pain can range from mild to severe. Bending, twisting and sitting may make the pain worse. Lying down or resting often relieves pressure on the spine.

Diagnosis of DDD

  • DDD is found on imaging, either by Xray, CT scan, or MRI.
  • In order to specifically diagnose the disc level that is causing the pain, a discography is recommended.
  • Rarely and depending on other symptoms, it may be recommended that the patient be evaluated for infection or autoimmune illness that may be contributing to the degeneration of the disc.

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Non-Operative Treatments For Degenerative Disc Disease

Physical therapy and home exercises that stretch and strengthen the spine area affected can increase flexibility and muscle balance surrounding the area of DDD.

  • Physical therapy and home exercises that stretch and strengthen the spine area affected can increase flexibility and muscle balance surrounding the area of DDD.
  • Bracing of the affected area of spine, especially the low back, can help to reduce stress in the area that comes with certain activities like prolonged walking or standing.
  • Prescription medications, such as oral anti-inflammatories, nerve blockers, and muscle relaxants can help reduce the severity of the pain. There are also patches and creams that can be applied to the skin directly to the area of pain.
  • Facet joint injections may reduce swelling and relieve pressure on the joints that are causing pain in the level of DDD. If successful in reducing pain, sometimes radiofrequency of the nerves that go to the facet joints can be more long lasting
  • Nerve inflammation can be treated at the level of DDD can be treated with epidural steroid injections. One clue that pain may be coming from the nerve is if there is a tingling or burning sensation travels away from the spine.
  • Once, the specific level causing pain is identified by discography, disc regeneration techniques can be targeted to that level. This can include annuloplasty or regenerative treatment, such as prolotherapy, PRP, and Stem cells.
  • Spinal cord stimulation is an excellent long term treatment of ongoing spine pain that avoids surgical treatment like spine fusion.
  • Rest and activity modification: Avoid strenuous and high impact exercise or activities that involve repetitive bending and lifting. Give your body time to reduce the swelling in the disc and spine bones that is causing the pain. Just don’t overdo it on the rest – too much inactivity will leave you stiff and achy.
  • Alternative Therapies: Some patients find relief with laser treatments, acupuncture, herbal remedies, massage and/or chiropractic manipulation.

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