How does everyone here think medicine works? It's not an exact science. A lot of it is trial and error. If your foot snaps off and is dangling off the end of your ankle it's easy for a doctor to know what to do. If you have some knee soreness, that's a different story. Is it related to the previous surgery or is it just the regular soreness that comes from being a professional athlete?
Since I'm not a doctor and don't know anything about medicine or about what, exactly, is going on with Kyrie's body, I don't feel comfortable criticizing the treatment.