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Researchers unsure how to evaluate metal ion levels in patients with metal-on-metal hip implants

Blood tests to measure the amount of metal ions in the blood of patients with metal-on-metal hip implants are inexpensive and provide helpful information. But they do not provide definitive information whether an artificial hip is functioning poorly and is likely to fail, new research shows. Chromium and cobalt ion levels are generally elevated in the blood of patients with all-metal hip implants. Because the implants have been found more likely to fail than traditional hip implants, medical regulators say that patients with the devices should be monitored on a regular basis for signs of failure. That monitoring generally includes a ... Read More