Join Date: Mar 2012
Location: Where the red fern grows....
OP...sounds like your on the road to recovery and letting your new mare recover from the fistulas. When you think she is clear and healthy, before you do ride, have your vet come out and re-evaluate her, looking and touching and pushing on the areas that they were at. As Saddlbags said, it may still be a bit of tenderness deeper down.
Also, maybe use a thicker saddle pad for the first few rides once you do start, to give her withers extra padding.