Are medially fading osteotomies and high-low-high osteotomies used to thin or widen nose?

I’m not sure about your terminology but the osteotomies in general are used to narrow the nose. Using them to widen the nose would be highly unusual

The low high low osteotomies are used primarily for narrowing the nose but can be used to widen it. Same for medial osteotomies. Although it is more common to use both of these for narrowing. When they are used for widening the nose, the recurrence or failure rate is higher.
Regards
Dr. Janjua

Hello and thank you for your question. These are maneuvers which can decrease the nasal mid-vault width. I recommend that you seek consultation with a qualified board-certified rhinoplasty surgeon who can evaluate you in person.

Best wishes and good luck.

Richard G. Reish, M.D.
Harvard-trained plastic surgeon