Hi Bowlermk - i'm just over 6 months post-op and I still have the same issues that you're having. Steps are the worst for me still. I can walk mostly normal, but the pain/popping in my knee are bad going up and down stairs (inclines/ramps can be a challenge too depending on the pitch). Not sure if that's related to the cartilage damage that was sustained that went unrepaired, but it could be. I was released from PT and by the original OS in early June, and it isn't getting any better. So I plan to seek out a second medical opinion with a different Orthopedic in the coming weeks. Thanks to insurance, I'll have to go the route via my primary care doctor for tests until that can happen though. Ahhhhh fun fun fun....
Where in NJ are you located? There are at least 2 of us on the board here in the South Jersey area. Good luck!