Kneading bread with arthritic hands-any tips?
There are a few options:

Most bread machines have an option to knead/mix only - you can then take the dough out and shape and bake as you would if you were doing things by hand.

You can also get "dough hooks" for most stand mixers (e.g. Kenwood or Kitchenaid), these are a bent arm or corkscrew sort of shape designed to knead the dough, and are what is often used in commercial kitchens: here's a picture of a Kitchenaid one. Edit: Dough hooks also come with some hand mixers, but I can't imagine that this would be any better for arthritic hands than kneading unaided.

You can also make "no-knead" breads, these might be quick breads such as scones or soda bread, which basically you mix the dough, shape, then bake. Or they might be a yeast based bread, where all you do is mix the ingredients, incubate to rise, then bake. These last ones are a specialist area of bread baking, so I don't have any advice on good recipes. I would google for highly rated ones.

@Joe reminded me in a comment, there are also a ton of recipes for food processors, which basically mix and knead in the the processor. This does not require a special blade, just the standard sharp metal blade.