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The Journal of Bone & Joint Surgery British Volume
Vol. 89-B, Issue 4 | Pages 538 - 541
1 Apr 2007
De Haan R Campbell P Reid S Skipor AK De Smet K

A prospective study of serum and urinary ion levels was undertaken in a triathlete who had undergone a metal-on-metal resurfacing arthroplasty of the hip four years previously. The one month study period included the final two weeks of training, the day of the triathlon, and the two weeks immediately post-race. Serum cobalt and chromium levels did not vary significantly throughout this period, including levels recorded on the day after the 11-hour triathlon. Urinary excretion of chromium increased immediately after the race and had returned to pre-race levels six days later. The clinical implications are discussed.