Here is a link to an informative article by Dr. Su.
http://www.amjorthopedics.com/PDF/041100446.pdf
Nice article written in plain english so even thickos like me can get it.
Nice little article!
Very good article. Here's a question, are revision increases in <50 mm femoral heads due to elevated metals from excessive wear (less surface area on head) or due to femoral neck fracture because there is a smaller neck from the get go?
Su might actually address this in the article, but I couldn't quite tell.
Thanks