Bob H in NH is 100 percent correct. There are good surgeons, and there are bad surgeons.

Try to make friendly with a physical therapist, or with an RN on the orthopedic ward, and for God's sake get a recommendation!

As I said above my first knee surgery was a failure and I suffered for 17 months. 17 months on crutches.
While going to all the rehab and PT I talked at length with the therapists and RNs and got a good recommendation. My second surgery went great.