Hi Debbie, The trekking poles do help a lot with the upright posture when walking and I can actually walk easier with them because it supports my back. The trekking pole I bought were fairly inexpensive - https://www.amazon.com/gp/product/B00WTUVBMA/.

I had a friend in his late 80s that passed away a couple of years ago that used a walking stick for the same purpose and it might be an option instead of a cane since you can hold it higher up. Come to think about it, you could probably just use one of the trekking poles by itself to see how it works instead of a cane.