@beryl is right,, I have not questioned any one on the type of hip replacement they have had,, but maybe we can come up with a common thread here,, mine was a metal implant Cemented,, Bone scan said there was "loosening",, which Lioness feels there cannot be any loosening>> I have had 2 xrays, Bone scan, and an MRI and blood work to check for infection after the surgery.. The surgeon has said all was fine,, but he refused to look at the bone scan,, because he did not order it.. (wow).. When he discussed the MRI with,, he said nothing was found. I asked for a copy and put it in my purse and just read it recently,, there is 3 different tendon tears. Well could this be the pain I am having?? being as he didnt discuss this with me,, I dont know,, but I dont think I trust him any more.. Can anyone tell me what kind of info I need about the implant itself,, so I have it on hand incase of a recall .. I am guessing Manufacturer of course,, but are there numbers,, types?? and so forth?? thanks