Hi Suzanne,
Hopefully someone here can help. I did a google search and as per usual there is so much stuff to wade through.
I did find this on a medical publication "Transposition of split-thickness skin grafts from the anterior thigh to the oral cavity is an ideal method for reconstruction of selected defects following major oncologic ablative surgery. This alternative potentially allows for tongue mobility, deglutition, and articulation superior to that obtained with bulky adynamic myocutaneous flaps." This sounds more like what I had at my original surgery. Did your doctor mention where he would be taking the graft from? PM me if you want the reference and search.
Gabriele