On Radio 4 yesterday GS was mentioned by someone in a phone in about Hip Replacements. The surgeon seemed quite positive about it, saying that taking GS wouldn't do any harm and seemed to help some people. He said it was expensive and that it seemed to work better in combination with something else (not sure what it was)- but if I can get the darn speakers here working I will trawl through the program again to see if I can make it out