Soya - if I had an uncommon problem, I’d ensure that the person caring for me was the one other physicians sent their patients…an their families to. Simply ask the hip orthopedic surgeon how many hip arthroscopies he/she does per year and it it’s less than, say 30 - 50, find some one who does. In the US, Tom Byrd in Nashville seems to be among the leaders in hip arthroscopy and may give you the advice you seek. Good luck.