This is a multi-center, randomized study to compare blood and urine cobalt, chromium, and titanium ion levels of a metal-on-metal articular bearing coupled with two different head sizes to that of a conventional metal-on-polyethylene bearing.
Read more: http://www.clinicaltrials.gov/ct2/show/NCT00962351?cond=%22Arthritis%22&lup_s=07/28/2011&lup_d=30
