The study was financed by the Food and Drug Administration and involved more than 35,000 operations in 46 hospitals in the Kaiser Permanente health system.
The researchers found that while the overall rate of failure was low, women were 29 percent more likely to require a repeat surgery within three weeks of the initial replacement surgery compared to men. The study has been published in the JAMA Internal Medicine.
"This is the first step in what has to be a much longer-term research strategy to figure out why women have worse experiences. Research in this area could save billions of dollars" and prevent patients from experiencing the pain and inconvenience of surgeries to fix hip implants that go wrong", National Research Center for Women & Families' Diana Zuckerman, who wrote an accompanying commentary in the journal, said.