My surgery was a fail?

I had surgery on my hip in February to repair a labral tear. I did not heal properly and am in more pain than before surgery. My surgeon told me I need a hip replacement now. He did not take x rays or look at my gait since surgery. He claims that the tear was repaired and this is just arthritis causing my pain. I want another opinion but don’t know how to go about getting one in light of the fact that my hip has already had surgery.  How do I find a doctor who is willing to assess honestly another doctor’s work?