I received a cushion for when they did my mucosectomy, this cushion is by far the best cushion i have ever dealt with, i had a small foam one i bought for my house that did not do anything, resorted to sitting on a pillow for awhile and this cushion they gave me blew everything out of the water, i love it, i bring it to work with me and will be purchasing another one from amazon since i succesfully found them, you sit with the individual columns facing up, its a godsend. my legs dont fall asleep from time to time anymore, my butt bones arent sore anymore (i have no fat...i lost alot of weight during these surgeries) and the fact that i work in IT and sit for long periods...oh yeah..this cushion rocks. called a Geomatt seat cushion. disregard the one guy who review it, hes mad because it wouldnt fit in his wheel chair...mine fits in both my computer desk chair here at work and at home perfectly.
http://www.amazon.com/Span-Ame...shion#cm_cr_dpwidget