Raspberries

I planted six autumn fruiting raspberry canes(Polka) in my new fruit cage last year. I had read they would not need support , last year they didn't but this year they've turned into giants growing up to the top of the cage or falling over, should I provide support for them next year and what sort?

Also it looks like they sent out runners, should I remove them back to the main plant.

I chose autumn fruiting to follow on from the strawberries which share the same fruit cage as I didn't want to spend the summer making Jan!

I have the same problem with Joan J. I support them as T&M say but with wire. Last year one wire OK. This year I needed two. Hot conditions made them grow tall but the crop is superb. Big fruit and plenty of them.