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The ligament along the back of your spine (ligamentum flavum) may begin to buckle.One of the vertebrae on either side of a worn, flattened disk can loosen and move forward over the vertebra below it.
This slippage can narrow the spinal canal and put pressure on the spinal cord.
This narrowing of the spinal canal is called spinal stenosis and is a common problem in patients with DS.
Women are more likely than men to have DS, and it is more common in patients who are older than 50.
A higher incidence has been noted in the African-American population.
X-rays will show aging changes, like loss of disk height or bone spurs.
X-rays taken while you lean forward and backward are called flexion-extension images.
This type of spondylolisthesis is most often seen in middle-aged men.
Because a pars fracture causes the front (vertebra) and back (lamina) parts of the spinal bone to disconnect, only the front part slips forward.
This disk degeneration is the start to both arthritis and degenerative spondylolisthesis (DS).
As arthritis develops, it weakens the joints and ligaments that hold your vertebrae in the proper position.