Kidney Stones, also known as renal calculi, are hard masses that separate urine from the urinary tract. These stones can occur anywhere in the urinary tract, including the kidneys, bladder, ureters and urethra.
This fluid is called the cerebrospinal fluid (CSF). When it leaks out, the pressure around the brain and spinal cord drops. Causes of leakage through the dura include: 1  Certain head, brain, or spinal surgeries.  Head injury.
As a result, the spinal cord may be compressed, causing dysfunction (see Compression of the Spinal Cord). Because the tissue is damaged, it is more susceptible to injury. For example, minor neck trauma due to a fall or whiplash can severely damage the spinal cord. Some people are born with a narrow spinal canal. In them, compression due to spondylosis may be more severe.