Keep at it. I'm glad you are seeing another doctor and I realize that with the increasing pain you can't keep going to doctor after doctor. So copy off information about the dual mobility cup and take it in with you next appt. Ask him/her if they have experience with it, will they consider using it. If not, would they consider doing their own research on it so you could discuss possibly using it. If not that, could they refer you do a doctor that has used it so you could find more information. You have to be persistent, even pushy, to get where you want to be. Pain-Free.
We'll have to confer on Tues. I'm having a lot of pain that I think is a tear in my left proximal (top) of the hamstring. Old damage from my particle disease I think. I was able to get an appt on Monday with my hip surgeon to see if I need surgery or maybe PRP will help. I'm hoping he will order a new MRI too, because I think it will show more damage since before my revision surgery. I may have to argue with him a bit, but he has generally been open minded so I'm hopeful.
Good luck to you too!