What is congenital spondylolisthesis?
Congenital spondylolisthesis occurs when a baby’s spine doesn’t form the way it should before birth. The misaligned vertebrae put the person at risk for slippage later in life. Isthmic spondylolisthesis happens as a result of spondylolysis.
What is dysplastic spondylolisthesis?
Dysplastic spondylolisthesis – This subtype is a congenital condition, present at birth, and is caused because of abnormal bone formation of the facet part of the vertebra resulting in spondylolisthesis.
What is degenerative spondylolisthesis?
Degenerative spondylolisthesis usually occurs in people over 60 years of age. In degenerative spondylolisthesis, what usually happens is that ongoing degeneration weakens the facet joints and disc, and (typically) the L4 vertebral body slips forward on the L5 vertebral body.
What is the most common type of spondylolisthesis?
Isthmic spondylolisthesis is the most common type of spondylolisthesis and is divided into three separate subtypes, but all have a defect at the same location in the spine.
How is spondylolisthesis defined in a medical textbook?
Spondylolisthesis is often defined in medical textbooks as displacement in any direction. Yet, medical dictionaries usually define spondylolisthesis specifically as the forward or anterior displacement of a vertebra over the vertebra inferior to it (or the sacrum).
What does it mean to have congenital spondylolisthesis?
Congenital spondylolisthesis: Congenital means “present at birth.”. Congenital spondylolisthesis is the result of abnormal bone formation. In this case, the abnormal arrangement of the vertebrae puts them at greater risk for slipping.
What is the name of the lateral displacement in spondylolisthesis?
Backward displacement is called retrolisthesis. Lateral displacement is called lateral listhesis or laterolisthesis. A hangman’s fracture is a specific type of spondylolisthesis where the second cervical vertebra (C2) is displaced anteriorly relative to the C3 vertebra due to fractures of the C2 vertebra’s pedicles.
Is it possible to not have symptoms of spondylolisthesis?
Spondylolisthesis and spondylolysis occur in about 4% to 6% of the adult population. It’s possible to live with spondylolisthesis for years and not know it, since you may not have symptoms. Degenerative spondylolisthesis (which occurs due to aging and wear and tear on the spine), is more common after age 50 and more common in women than men.
