About 20 minutes ago they took Summer back for a pre-op CT scan. They put her under with the strawberry-scented gas again and will take her straight to surgery when that's done.
All said and done, should be about five hours; 3-4 for the surgery plus pre- and post-op CTs, travel time, etc.
I'll post more updates throughout the surgery. They will try to page us with updates every two hours or so.