My wife has frontotemporal dementia which impedes leg movements. She has not been able to get in and out of a bath for some months, but can walk well on level ground but today was completely stuck on walking up stairs, just saying she coudn't move, as was the case. When I helped and lifted her to crawl the last 4 steps she not stand up. A friend and I managed to get her upright after half an hour. I haven't yet talked to the GP but should be grateful to learn of experiences with stair lifts for dementia patients. I imagine that with this progressive disease there could be problems fairly soon in using even a chair lift.