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According to a study by researchers at the Agency for Healthcare Quality and Research, and the Food and Drug Administration, about 200,000 total hip replacements, 100,000 partial hip replacements, and 36,000 revision (repeat) hip replacements were performed in the United States in 2003. The relatively high number of hip replacements needing revision has prompted other researchers from the University of California, San Francisco, to look into why hip replacements fail.

Bearing surface wear was thought to be the reason behind most hip revisions. But other problems can occur and may even be more common reasons for hip revision. Over the years, hip implant design and surgical technique have undergone changes in order to create more stable hip prostheses that last longer. What besides hip implant design has caused problems and the need for surgical revision? Learn more in Hip Revision - What You Need to Know.

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