Not sure what your question is. Yes, a quill stem in a threaded setup can be adjusted up and down, while a 'threadless' stem can't. There are a variety of stems in different rises and extensions of both styles. There are 'threadless' adjustable stems; those stems can be used with threaded forks if a threadless adapter is used.

Edit:
Looks as if there are also adjustable quill stems on the market.
http://www.bikeman.com/SM2931.html