I did this in July after an injury last year. We were based in Ortisei with no car so mostly just took cable cars up places to be in stunning mountains with lots of sitting down and eating Strudel.
Agree Seceda for a potter. It really is stunning. Lots of rifugii.
Alpe di Siusi is often recommended but I found it quite dull and wished I was on a bike, so I'd give it a miss.
Get the coffin lift up and down to Forcella di Sassolungo if you want to just be in the mountains but sit down in the rifugio and eat cake. Down (or plus) side, you may need to watch other people climbing and on via ferrata right there (we touched the rock longingly...). We got a one way ticket and walked back down to Sella Pass with stunning views, but it's steep and feels a bit loose - fine with good boots and all downhill; less fun with a vestibular migraine at the time... The lift is an experience - getting thrown into a moving box by a strange man - I don't know whether your injuries would preclude that...
I also hear the Adolf Munkel trail to Geisler Alm mentioned but not done it. It looks nice.
Enjoy.
Post edited at 01:49