I see you are from ny -- I am also from NY and just had both my hips replaced and in the near future will have both knees done --- also having had difficulty with pain and walking since my mid teens.
I saw several surgeons before I chose Hartzband ---all they do is hips and knees replacements and now 6 months after having bot hips replaced I am extremely happy -- no pain, walking for miles (before i could barely make it 1 block)
Hartzband is in Paramus NJ if you are looking for a 2nd opinion