What Does Minor Lucency At The Prosthesis Cement Interface Of Femoral Mean?

A year ago I had a right hip replacement and have had pain ever since. Recently I went to the specialist who did the op to get a hip review. A sentence in the x-ray report which followed worries me, what does it mean, and what should I do. The sentence reads ( Minor lucency at the prosthesis cement interface of the femoral component is noted and is of uncertain significance.) I can t upload a report as it is not on my computer. Thankyou.