Age and gender affect risk of hip replacement revision surgery | Arthritis Research UK.

Age and gender affect risk of hip replacement revision surgery

People who undergo hip replacement surgery are more likely to need revision surgery if they are male and relatively young at the time of their initial operation, research suggests.

Scientists at Brigham and Women’s Hospital and Harvard Medical School looked at US Medicare data on patients who had undergone hip replacement surgery to treatosteoarthritis between July 1995 and June 1996.

Participants were then followed up for the next 12 years to see if they needed revision surgery and, if so, whether there were any obvious risk factors for doing so.

The researchers found that the rate of revision surgery was approximately two per cent of patients per year for the first 18 months, falling to one per cent per year for the remainder of the follow-up period.

Men were 23 per cent more likely to need revision surgery during that time than women.

In addition, the risk of revision surgery was higher among 65 to 75-year-olds than it was among the over-75s.

People who were aged between 65 and 75 at the time of their initial hip replacement were 47 per cent more likely to undergo revision surgery than over-75-year-olds.

The research also revealed that patients whose surgeon performed fewer than six hip replacements per year had a higher risk of revision surgery than those whose surgeon did more than 12 such operations per year.

Publishing their findings in the Journal of Bone & Joint Surgery, the study authors concluded: “Efforts to reduce the number of revision hip arthroplasties should be targeted at revisions occurring in the first 18 months following the index (initial) arthroplasty, when revision risk is higher, and at younger patients, who are more likely to survive long enough to require revision.”

A spokesman for Arthritis Research UK commented that revision surgery was becoming increasingly successful in recent years as new techniques, materials and prostheses were developed and refined.

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