It means either bone from the vertebra(s) is growing into the spinal canal. This would be caused by spondylosis, or in English, Arthritis of the spine... The spinal canal runs down a passage made by the vertebrae and surrounding bony "arches". These arches have a part that 'sticks out' called the spinous process, and these are the "bumps" that you can feel when you run your fingers down someone's back. Here's a web address you can copy & paste into your browser to see what I'm talking about: http://images.Google.com/images?hl=en&q=spinal+canal,+picture&um=1&ie=UTF-8 Hope this helps!
The central, or Haversian, canal. The canal runs through the core of each osteon.
what is the function for central canal
Osteophytic encroachment of the neural central joints at C5-6 is when degeneration of a disc causes obstruction. This obstruction occurs at the foramina at C4-5.
what ismoderate central canal narrowing
Panama Canal
The Panama Canal.
No, the Panama Canal is in Central America.
Haversian canal & Central Canal
There is not a listed name for the Indiana Central Canal. This canal is eight miles long and another 80 miles are still awaiting completion.
What are the symptoms and treatments for degenerative changes lumbar spine with multilevel foramina encroachment
It's basically compression of your spine by the surrounding canal in the specific area your doctor is speaking of. Foramina, in this case, are the spaces in between your vertebrae. Encroachment is squeezing or compression of those spaces. I have bilateral bony foraminal encroachment of some of the disc spaces of my C spine. It doesn't normally bother me at all, though.
ithmus