Hello,
I would call your vet and discuss this with them. I suspect the diarrhea is causing constant straining and this is causing the prolapse. So I would ask about something for pain and get the diarrhea under control.
At my clinic I would talk about trying gabapentin or a steroid and adding a probiotic. Or ask for a second opinion from a feline specialist. Also ask about diagnostics available. Like a fecal or maldigestion profile.
Hello,
Have you spoken to your vet about splinting or using a half cast to allow the broken bone to heal. I only amputate when I am concerned about cancer.
Also this fracture seems very high in the foot to allow amputation unless you remove the leg? And oh my that sounds very aggressive. Please ask for a referral to an orthopedic specialist or get a second opinion. Also it is imperative (!!!!!!) to cage rest. Strict cage rest with limited mobility. Your pet should only be leashes walk to use the bathroom. No free ranging or unsupervised activities.