thanks for the info Toontowngal
yes I think it's fairly typical and I am starting to be quite worried:
This morning I had my apointment with my surgeon here in Vancouver here is what the result is:
he said X-ray are ok so we need to do ultrasounds to see if soft tissues are reacting to metal. My symptoms can be a sign of that.
Depending on degree of metal tissue inflammation, surgery is recommended ASAP because if tissues deteriorate more or too much then the surgery is not successful. I should have ultrasounds in around one month. If ultrasounds are not bad then I should manage it with pain killer and monitor with ultrasounds once a year.
Surgery is replacing the resurfacing prosthesis by a THR (total hip replacement) which is major surgery and very complex....
And surgeon here has done very few (less than 20) which means I will have to research and see if doing it with him is the best solution or if I should go to the states.