Big words to larp high iq. Fair take ive realised 2 inches is alot. Completely possible to grow after fusion and maintain the same hieght for weeks If not permanent tho. Ofc bone can't gain any length but the thickening of the cartilage in between spine discs will push the bone further up causing more hieght and better posture
Again. Wrong.
adult intervertebral discs are made of fibrocartilage w a dehydrating nucleus pulposus and the disc height decreases with age due to degeneration. not hypertrophy.
temporary hydration effects only cause difference in height and that's only for like 2 hours lol
postural correction (by strengthening postural muscles like erector spinae, multifidus, you can fix spinal kyphosis, anterior pelvic tilt) only create appearance of height gain but there's no structural change like bones lengthening. it's neuromuscular.
cartilage (fibrocartilage in discs) does not hypertrophy in a way thatll increase your height. BUT, It can undergo minor ECM remodeling (like proteoglycan content changes. articular and fibrocartilage can respond to loading with minor extracellular matrix remodeling). Still it doesn't cause height gain. it's microscopic
show me one case that shows actual BONE growth for height after fusion of plates and I'll believe you.
and by the way, im not "using big words to larp high iq", im just telling you what I've learnt and read from my dad and family member's medical books.