what is Anterior segmental osteotomy ??

[battleangel232232]

i posted this on the general forum, but I moved here since I think is more suitable.

here it is:
have anyone heard of Anterior segmental osteotomy ?? apparent this is a treatment for bimaxillary protrusion. Here is some info:

http://www.ncbi.nlm.nih.gov/entrez/quer ... t=Abstract

Have anybody heard of this? what is the procedure? is this for everyone?? cost???