The DePuy Orthapaedics ASR XL Acetabular System and DePuy ASR Hip Resurfacing Platform, medical devices implanted during hip replacement surgeries, were recalled during 2010 following clinical trials and consumer reports that show the devices have a 13% fail rate. The devices were recalled on the basis of the fact that they commonly leave behind metal debris in the joint, causing a recurrence of severe and chronic pain within five years of implantation. Some DePuy hip recall lawsuits also focus on the fact that the metal debris may cause metal poisoning. Traces of chromium and cobalt have been found in the bloodstream of some patients. Metal poisoning can lead to heart problems, loss of hearing and cognition, and hypothyroidism, among other ailments.