It sounds like you have "Calcaneus" not plantar fascia. It is a spur on the back of the foot, not under the heel. I have sent some info to you via e-mail. If you find any good reference material on spurs on the back of the foot, please forward to me.
Good luck with your surgery.
1cust96.tnt1.chi5.da.uu.net 14:21:31