28. February 2011 07:30
The term "herniated disc" has been called many things from a slipped disc to a bulging disc. For a doctor who specializes in disc problems, the term is critical because it tells him/her how to create a prognosis and subsequent treatment plan for a patient. To clarify the disc issue, a herniated disc is where a disc tears and the internal material of the disc, called the nucleus pulposis, extends through that tear. It is always results from trauma or an accident. A bulging disc is a degenerative "wear and tear" phenomenon where the internal material or nucleus pulposis does not extend through the disc because there has been no tear, but the walls of the disc have been thinned from degeneration and the internal disc material creates pressure with thinned external walls. The disc itself "spreads out" or bulges.
There are various forms and degrees of disc issues, but the biggest concern of the specialist is whether nerves are being affected that can cause significant pain or other problems. The problem exists when the disc, as a result of a herniation or bulge, is touching or compressing those neurological elements, which is comprised of either the spinal cord, the nerve root (a nerve the extends from the spinal cord) or the covering of the nerves, called the the cal sac.
With regard to the structure that we have just discussed, the doctor must wonder what the herniation of the neurological element has caused. In this scenario, there are 2 possible problems, the spinal cord and nerve root. If the disc has compromised the spinal cord, it is called a myelopathy (my-e-lo-pathy). You have a compression of the spinal cord and problems with your arms or legs. An immediate visit to the neurosurgeon is warranted for a surgical consultation. The second problem is when the disc is effecting the spinal nerve root, called a radiculopathy. It is a very common problem. A doctor of chiropractic experienced in treating radiculopathy has to determine if there is enough room between the disc and the nerve in order to determine if a surgical consultation is warranted or if he/she can safely treat you. This is done by a thorough clinical examination and in many cases, an MRI is required to make a final diagnosis. Most patients do not need a surgical consultation and can be safely treated by an experienced chiropractor.
While herniations can occur anywhere, it was reported by Jordan, Konstanttinou, & O'Dowd (2009) that 95% occur in the lower back. "The highest prevalence is among people aged 30–50 years, with a male to female ratio of 2:1. In people aged 25–55 years, about 95% of herniated discs occur at the lower lumbar spine (L4/5 and L5/S1 level); disc herniation above this level is more common in people aged over 55 years" (http://clinicalevidence.bmj.com/ceweb/conditions/msd/1118/1118_background.jsp#incidence).
These are the reasons that chiropractic has been, and needs to be, considered for the primary care for low back-lumbar disc herniations with resultant pain in the back or legs. This study along with many others concludes that a drug-free approach of chiropractic care is one of the best solutions for herniated discs and low back or leg pain.