Artificial hips have been a big advancement in treating debilitating arthritis. But there have been reports of medical issues — some serious — in patients with all-metal implants. hide caption

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Chicago attorney Tom Hayward suffered a raging infection caused by bacteria present in his gut before a prostate biopsy. He had to be hospitalized, but has since recovered. Icoi Johnson for NPR hide caption

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A study at Pennsylvania State University on autopsies found treatment should have been different in about a quarter of cases. Nicholas Monu/ hide caption

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A patient undergoes radiation oncology treatment for a brain tumor. hide caption

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