Slipped Vertebra or Spondylosisthesis
Sliding of vertebra can be inherent (isthmic spondylolisthesis) or acquired. Degenerative changes of the intervertebral space or the vertebral facet joints for example can cause spondylolisthesis.
Sport activities which involve a lot of back bending of the lumbar spine very often lead to damages of the vertebral arches. This can also contribute to the development of a spondylolisthesis.
Other possible causes are traumatic injuries, some bone diseases or – in rare cases – undesired after-effects of certain spine surgeries.