This is certainly not a fun thing. My mother has been in a skilled nursing facility on a continuing basis for about a year but was in fairly frequently before that. My step father was finally convinced that he really couldn't keep taking care of her at home. She would wander too but also has osteoporosis (I think I got that right) and almost every time she was falling she was breaking one bone or another. She has Parkinsons and either due to Parkinsons or the meds she's pretty confused now to the extent of dementia. She was quite sure another family was living in her house with her. He goes to the nursing facility every day and is there most of the time.

So, my sympathy to you and yours. Hopefully things go well though.