Retrolisthesis is an uncommon joint dysfunction that occurs when a single vertebra in the back slips backward along or underneath a disc.

Retrolisthesis is the opposite of spondylolisthesis, which occurs when a vertebra slips forward. Retrolisthesis occurs in the neck and shoulder area, known as the cervical spine, or the lower back, known as the lumbar spine.

Retrolisthesis occurs less often in the center area of the spine or the thoracic spine, although it is possible.

Types of retrolisthesis

Model of the vertebrae in the spine.

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