I'm not a big fan of microfracture if the lesions are large.
Mine didn't work that well. My ankle was pretty bad before the surgery and it's pretty bad afterwards. All in all not worth the time and cost and recovery IMO as I have the same experience, maybe 5-10% degraded
I feel like microfracture is every surgeon's "safe answer". They know things can't really go that badly, and they know they can go do microfracture again if the 1st doesn't take. In my opinion they have no good solution as of yet so they default to microfracture