Hi, I was able to find this article on elbow luxation in rabbits. It's clearly written for a vet:
I have not found any other things on this condition. The article above probably describes luxation of the joint in one of the forelegs, not a hindleg, but I can't be sure.
This article describes surgical correction of simple fractures in rabbits:
It is fine for a bone surgeon to do the surgery as it shouldn't be much different in rabbits than in other animals of the same size. However, anesthesia will be quite different and aftercare will also be different. In a dog or cat, antibiotics and steroids might be part of the aftercare. A rabbit shouldn't have these, and pain medication might need to be stronger. I would think narcotic pain meds should definitely be included.
There is a lot of good information on anesthesia for rabbits on this page:
And some more pre- and post-operative care here:
Most bunnies will remove their bandages and collars don't work very well with them.