Assertion: spondylolisthesis | /r/CreatedBy | vertebra
Facets:
Source sentences:
text: Spondylolisthesis can be caused by a vertebra being defective from birth, breaking due to a stress fracture or trauma, or discs degenerating from disease, infection, or old age.
text: Spondylolisthesis is a condition that is caused by one of the bones in the spine, or the vertebrae, slipping out of its position and onto the bone (vertebrae) below that position.