Ive had rsd since jan ,,but probually concieved it last july during a arhtroscopic hip repair in july of last year,,,I then had a THR 4/13 of this year ,,and ive not been right since,,the exray shows the hip is in place but thats only an static picture,,its a pressed fit ,,so early loosening of the aceatubular would not be seen,,so either rsd has migrated to the hip or ive got a loose cup,,im due for a revision,but im puting it off hoping the pain will get to a tolerable point of healing,,I did not have a continous block,,thats where i went wrong,,if you decide to have the surgery,,talk with your dr and anthesis dr about running a continous block,,,,good luck,,and i will Lift you up a prayer,,,bobber,,pm me if you want to