Assertion: ankylosing spondylitis | /r/Causes | much damage
Facets:
value: to facet joints
type: TRANSITIVE-OBJECT
value: to the spine’s intervertebral discs
type: TRANSITIVE-OBJECT
value: in rare cases
type: OTHER
Source sentences:
text: In rare cases, ankylosing spondylitis can eventually cause so much damage to the spine’s intervertebral discs and facet joints that vertebral bones start to fuse together.