sciatica
« back to GlossarySciatica Definition
Sciatica, by definition, technically is not a distinct spinal condition. Rather, it is a name given to a set of symptoms associated with irritation, impingement or other interference with the sciatic nerve and its branches in the lower back, or lumbar region of the spine. Sciatica also is known as sciatic neuritis.
Sciatic Nerve Vulnerability
The length of the sciatic nerve – it is the longest nerve in the body – and its location in the flexible, weight-bearing lumbar region expose it to spinal conditions that can produce nerve impingement. These conditions include lumbar spinal stenosis, spondylolisthesis, herniated disc, bulging disc, and osteoarthritis. In addition, a traumatic injury or spinal tumor might create anatomical instability that could lead to sciatica, the signs of which include:
- Radiating pain – sharp discomfort travels down the lower back to the buttock, down the leg and into the feet
- Tingling – this is experienced most often if the nerves that innervate the feet or toes are affected
- Numbness – a loss of sensation can be associated with a neural interference
- Muscle weakness – along with the loss of sensation or numbness, the affected muscle groups might weaken or become less responsive
- Incontinence – a loss of bladder or bowel control is a sign of cauda equina syndrome, a serious condition that requires emergency care
Managing Sciatica
Most people are able to manage sciatica through the use of alternating cold and hot packs, stretching, exercise and over-the-counter, anti-inflammatory medication. A doctor might also recommend other forms of conservative, non-surgical treatment, including physical therapy and prescription medication. Should chronic sciatica persist in spite of weeks or months of conservative treatment, a doctor might suggest nerve decompression surgery to remove the source of irritation or impingement.
Rather than settle for traditional open back surgery for sciatica, tens of thousands of patients have discovered the minimally invasive, endoscopic alternatives at Laser Spine Institute. Contact Laser Spine Institute to learn more or for a free review of an MRI or CT scan.




