Laura, if your knee has always looked like that, chances are that the hip surgery wouldn't have fixed it. A knee specialist would know best what to do about it. Let me tell you how I felt about having another surgery. After I didn't get better post-THR last summer, I couldn't stand the thought of having another surgery, since I had had such a difficult time with the THR. I was sure I would never have surgery again. Then, when it became apparent that I would not ever be able to walk without using aids and having pain, and that a surgery would correct at least part of my problem, I became resigned to it. It's been 5 months since I agreed to the operation, and, with one month to go, I am looking forward to it now, as it is harder and harder to live with my disability and pain.
You have apparently lived with your knee situation for your whole life. Is it painful and does it make walking harder or limit your activities? If so, only you can know what you would be willing to do to make it better, if possible. In time, you may be more open to surgery, if necessary. At 2 ½ months out, I wouldn't have been able to consider it! If it doesn't limit you, then maybe you will choose to continue living with it.