Joint Replacement & Second Opinion

Reason for second opinion in joint replacement:
Medical field is not like a shopping place, where you can survey many places.
But many issues of joints are not in every doctor’s hands to tackle.
There is always a better expert and experience.
Medical field is always with two schools of thoughts : one doctor think something, the other may think    
some other thing.
To take second opinion is not to doubt the first doctor, but it is to have clear understanding of problems.
It helps to choose best doctor.