Assertion: spondylolisthesis's vertebra | /r/CapableOf | weaken the spine
Facets:
value: severely
type: DEGREE
Source sentences:
text: When a disc narrows from degeneration, the bones above and below the disc can move or slip on each other causing the vertebra to shift either forward, backward or most importantly for adult scoliosis patients, the vertebrae can slip to the side severely weakening the spine.