HI,
Your pix of Rupert are gorgeous, by the way.
Spockie was disabled in his hind leg for at least 6 months last year. I found this section on Cats Rabbits & More, which was helpful in beginning my research:
http://www.catsandrabbitsandmore.com/disabled_rabbits
Because it was probably arthritis, I was feeding him a syringe of pain killer once a day from the vet, mixed with apple flavoring. He took it really well, ate, napped, and was able to stand a bit immediately afterward. However, our routines changed. He was very eager to come out, and he did this thing where he scooted around pushing with his good back leg and pulling with his front ones. He got really fast, and still covered the length of my apartment. I had to get an absorbent pet rug for his cage floor because he couldn’t lift his leg into his litter pan, which disturbed him. He also got more traction on it. Also had to change his food dishes to lower ones so he could reach in from a prone position at times.
It just taught me that if you let them, they will adapt to their own disability and overcome as much as possible. Let him out, lift him to places he seems to want to get to. Rig up little ramps–seagrass matts on angled cage doors, or boxes, can act as a ramp that’s easy on the paws. I lay on the floor to visit and keep him company, and got alot of kisses as a result. I also gave him a change of scene by just carrying him all around the apartment and pausing to view each area. We looked at the bunny in the mirror. He snuggled, but was alert to all the views.
Just think lower, horizontal games and living spaces, and let him guide you.