Yeh i would not rule that out, but i would very much doubt it. If the cup was loose you would be sure to have movement on mobilising too. I am sure even the uncemented acetabular cups are held in place by one cannulated screw, no cement, well all the uncemented hips i have seen being done, have been carried out this way, i am sure this is how mine was done.
But at this stage, i would not rule anything out, as anything is possible.
From doing a wee bit of digging, i am starting to think down the route of some sort of bursitis, i am getting occassional pain when lying on my left side, the skin is tender below the trochanter, getting the pain when sitting.
I really need to wait to see my consultant, which aint for another two weeks?
Thanks for the suggestions