What is spondylolisthesis?
Spondylolisthesis is a condition involving spine instability, which means the vertebrae move more than they should. A vertebra slips out of place onto the vertebra below. It may put pressure on a nerve, which could cause lower back pain or leg pain.
The word spondylolisthesis (pronounced spohn-di-low-less-THEE-sis) comes from the Greek words spondylos, which means “spine” or “vertebra,” and listhesis, which means “slipping, sliding or movement.”