...this is a really tricky one for a forum. The lateral release sounds like it's the magic solution, there's lots of previous history and lots of anecdotal evidence to say that it works, or at least you feel better, later.
But, I wouldn't let any surgeon I know even do it to my dog...and I haven't got a dog! I don't know of any surgeons that still do it. It's (sorry!) a really poor op, has poor long term outcomes and absolutely isn't the magic solution.
If you are thinking of having it done then do ask your OS how many has he's done in the last 3 years and what's the long term outlook. Get your expectations met.
The issue's, mostly, lie with poor initial, physio - so you fail at conservative treatment and the surgeons hands are tied into doing something invasive....
I think a word of caution - OS are great surgeons, but they are crappy physios, just as physios are crappy surgeons etc.
Your age, what you've had done and your expectations put you right in the middle of the stats bell curve.
Loads of people run with arthritis and have no idea they have it. Conversely lots run without arthritic change and have pain that feels like they have. It's not what you've got, but it's what you do with it....