I'm in a similar situation with an arthritic hip, leading to a very gimpy sore leg. For me, that leads to a classification of "hard core EDC", (phone, wallet, multitool, key ring, bandanna) and "nice to have" items (water bottle, snacks, notebook and pen, FAK).

This usually goes in my nicer day pack, which actually has plenty of room for most of the usual camp items which can be inserted if outdoor activities are contemplated.