I think I found a couple of sites, I hope these help you out. Let me know if you would like more
https://nyulangone.org/news/re...atient-pouch-failure
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4882179/
*Dr. Feza Remzi has Youtube videos on Youtube that talks a lot about Revision surgery as well* I would go on his website too. He is an amazing guy