ruptured intervertebral disc vs herniated disc

ruptured intervertebral disc and herniated disc both are nouns.

Word	Noun	Adjective	Verb	Adverb
ruptured intervertebral disc	Yes	No	No	No
herniated disc	Yes	No	No	No

As nouns, ruptured intervertebral disc and herniated disc are synonyms defined as:

ruptured intervertebral disc and herniated disc: a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region

Other synonyms of ruptured intervertebral disc include slipped disc.

ruptured intervertebral disc (noun)	herniated disc (noun)
a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region	a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region