AdvertisementProne To Failure, Some All-Metal Hip Implants Need To Be Removed EarlyMarch 19, 2012Richard KnoxfacebookEmailYoung-min Kwon of Massachusetts General Hospital holds the metal-alloy ball of Susy Mansfield's faulty artificial hip joint. The yellowish tissue on top is dead muscle caused by a reaction to the metal debris produced by the defective hip implant. (NPR)