[Gracie2006]

Ask your vet about cast protectors. They are a long sock-like thing designed to fit over casts so the dog can go outside in the grass to potty. Another option would be to make some sort of a cover using some fabric and Velcro, or you could pick up some Koban (its like an ace wrap but made of a rubbery product that sticks to itself) from your vet or from the drug store and wrap that around to protect the incision. Chat with your vet, they have lots of good ideas for situations like this.