Spondylolisthesis is a condition in which one vertebra displaces either forward or anterior over another, commonly involving the fifth lumbar vertebra. It most often occurs in the lower spine. In some cases, this may lead to your spinal cord or nerve roots being squeezed. This can cause back pain and numbness or weakness in one or both legs. In rare cases, it can also lead to losing control over your bladder or bowels. Spondylolisthesis may be caused by any of a number of problems with the small joints in your back. You could have a defective joint that you've had since birth (congenital), a joint damaged by an accident or other trauma, a vertebra with a stress fracture caused from overuse of the joint. A joint damaged by an infection or arthritis.
- Hangman’s fracture
- Degenerative spondylolisthesis
- Dysplastic spondylolisthesis
- Isthmic spondylolisthesis
- Traumatic spondylolisthesis