Question: is this a 2) strong advice, 1) weak advice 0) no advice?

Although the low friction arthroplasty is often considered as the gold standard in terms of polyethylene wear, Isaac et al. demonstrated that stainless steel femoral heads became roughened in vivo, mainly by particles of radiographic contrast medium, and assumed that the harder ceramic femoral heads would give a bearing surface which would not be damaged so easily [17]. 
user
This is no advice
assistant