Causes
Spondylolisthesis can occur due to various reasons, such as:
Congenital: Some people may be born with a defect in the pars interarticularis, the bony bridge between a vertebra’s upper and lower facets. This defect can cause the vertebrae to slip out of place.
Degenerative: As we age, the discs in our spine lose water content, become less flexible and flatten, leading to wear and tear in the spinal joints. This can cause the vertebrae to shift forward.
Traumatic: An injury or accident can cause a fracture in the vertebra, which can cause it to slip out of place.
Isthmic: A stress fracture in the pars interarticularis can occur due to repetitive strain or overuse, which can cause the vertebrae to slip forward.
