Both orthopedist and gp have approved so far. She's had two cortisone shots in hips, one in shoulder in last 8 months. They work but only for 2-3 months' time. She also had physical therapy which medicare just stopped. In the last year she has grown a bit more irrational, obsessed with what her money is doing, wants constantly to change her will, empty her annuities (which are making enough money in interest to practically support her with retirement) to move them to checking account (which is sitting there with $100,000 in it) or buy gold to keep in her safe she has lost the key to. I have been handling her with kid gloves so far, but am worried now that she perhaps is more mentally off balance than I thought. I am now worried that she should not have the surgery because her orthopedist surgeon gave her a steroid-pak for inflammation (avoiding another shot), and she became the mad woman of our family. Confusion, irritation, aggressiveness, combativeness, wanting to act out even more (threatening legal action when we took her car keys), very hurtful statements, hiding things, lying about when her doctors called. I know she is trying to hold on to her power at this hard time, but the trust between us before seems to be threatened. So several issues, should she have hip replacement? Should I enact some sort of power of attorney to keep her from doing something irrational? (like getting friend to take her to bank to pull out money) I want to keep the trust between us as much as I can, and it seems any action on my part will make it worse. How can I tell the doctors about her mind and my worry she will get worse with surgery? She is a very good performer and tells everyone she handles her own bills, does everything for herself with no help from anyone (which is totally untrue). Anyone have advice on any of these issues?