sciatica

Sciatica is generally caused by the compression of lumbar nerves L4 or L5 or sacral nerves S1, S2 or S3, or by compression of the sciatic nerve itself. When sciatica is caused by compression of a dorsal nerve root (radix) it is considered a lumbar radiculopathy (or radiculitis when accompanied with an inflammatory response) from a spinal disk bulge or spinal disc herniation (a herniated intervertebral disc in the spine), or from roughening, enlarging, and/or misaligning of the vertebrae (spondylolisthesis), or degenerated discs. The intervertebral discs consist of an annulus fibrosus which forms a ring surrounding the inner nucleus pulposus. When there is a tear in the annulus fibrosis, the nucleus pulposus (pulp) may protrude through and push against spinal nerves within the spinal cord or those exiting, causing numbness or excruciating pain. Sciatica due to compression of a nerve root is one of the most common forms of radiculopathy.

Pseudosciatica or non-discogenic sciatica, which causes symptoms similar to spinal nerve root compression, is most often referred pain from damage to facet joints in the lower back and is felt as pain in the lower back and posterior upper legs. Pseudosciatic pain can also be caused by compression of peripheral sections of the nerve, usually from soft tissue tension in the piriformis or related muscles.

this article posted because suddenly i think about one of my friend. his sciatica problem crossed my mind now.. i hope he will be ok n ok n ok... :-)

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p/s :- jaga diri jaga kesihatan