I am sorry to hear about your pain at such a young age, I can understand why you are thinking of going to Thailand or India to get fixed because I badly damaged my knee playing rugby when I was 30 and after 10 years of pain I too was desperate. BUT, you have to think about this very carefully, why have the two OS’s refused to give you a TKR or a PKR? What if something goes wrong after the operation? What do you do when you need follow up treatment? Thailand or India is a long way to go just to see the surgeon.
Being in a foreign hospital is not easy I was hospitalised for two weeks in Abidjan on the Cote d’ivoire Africa, and it was the loneliest time of my life, it is not just the language problem, they do things differently, the care is different, not bad, just different, and for such a massive operation (And it is massive ask anyone on this forum) I think that you will want to be as close to home, family and friends as possible.
I have had 11 operations here on the NHS and have felt 100% safe and confident with every one of them, the care and, just as important the ‘after care’ (Nurse visits, doctors etc) has always been 100% I don’t think that I would feel the same going abroad.
Sorry to put such a dampener on your expectations but this is what I feel.
Good luck with whatever you decide.
OH yeh, I had the Zimmer NexGen CR Flex fitted, I have 145+ flex and can hyper extend if I want to, I have just had my patellar resurfaced and finally feel like I am on the road to recovery and I am now 58 yrs old, but time is on my side.