A slippage of one vertebra over another. This is a malalignment of the vertebral bones. It is usually due to a break in the posterior portion of one of the vertebra. It may be slight or severe. It is generally graded from Grade 1 (the best) to Grade 5 (the worst).
An alignment abnormality of the spine in which one vertebra is displaced with respect to another. Forward slip of of one vertebra over another associated with a spondylolysis, high impact accidents especially in the cervical area and/or degenerative changes.
A condition where one vertebra slips out of alignment with another. Most common is the fourth over the fifth lumbar vertebra or the fifth over the sacrum. The causes can be congenital or due to structural defects, degenerative changes and injury. Some people have it without symptoms, but others have major pain and nerve-related symptoms.Called retrolisthesis if the slippage is backwards.
Slippage of one vertebra forward on the adjacent vertebra is called spondylolisthesis. It occurs most commonly in the lumbar (lower back) area and produces a general deformity of the lower spine along with a narrowing of the vertebral canal. Spondylolisthesis may develop during childhood or early adolescence in a weakened area of the vertebra, as a result of an injury, or due to degeneration later in life.
A defect in the construct of bone between the superior and inferior facets with varying degrees of displacement so the vertebra with the defect and the spine above that vertebra are displaced forward in relationship to the vertebrae below. It Is usually due to a developmental defect or the result of a fracture.
Forward or backward displacement of one vertebra in the relation to the adjacent vertebra below. Depending on the amount of the displacement, spondylolisthesis may require surgical intervention to fuse the spine.
Forward displacement of one vertebra on its lower neighbour. Most commonly seen at L5/S1. The degree of spondylolisthesis is determined by the distance the slipped vertebra travels on its lower counterpart - Grades 1 - 4. Most commonly described as: congenital, spondylolytic, traumatic, degenerative or pathological. Can often be found incidentally.
(see spondylolysis) refers to a crack in a defective vertebra that widens and causes back trouble. At first glance the term seems impossible to pronounce but if you break it down it makes sense. Spondyl means "vertebra" and olisthesis is the Greek word for "slip." If the spondylolysis crack widens sufficiently, the front portion of the vertebra, which is detached from the rear, can gradually slip forward in relation to the vertebra below. In its mild form, spondylolisthesis may remain undetected. More severe cases usually respond to conservative treatment, which includes an exercise program to strengthen the muscles in the weakened area.
Spondylolisthesis (not to be confused with spondylosis or spondylolysis) is an anteroposterior translatory movement of two spinal vertebrae in relationship to each other caused by instability between the two involved vertebrae. The instability can be caused by degenerative changes of the facet joints, or by congenital or traumatic disruption of the pars interarticularis of the upper of the two vertebrae. It occurs most commonly in the lumbar spine.