It's best not to get to far ahead of the information, IMO. The defecography will provide key information, including just how socially awkward a medical test can be. Assuming you have a prolapse, I think some sort of structural repair is the only way you'll get your pouch to function well. Ask your surgeon how many prolapsed pouches he/she has repaired, and get a list of the options your surgeon is offering. Ask about the pros and cons of each one. Then it's less speculation and more decision-making. I'm sorry you have to deal with this, but I'm glad you a straightforward, correctable problem.