Thursday, May 29, 2008

Overweight, Obesity Linked to Knee Replacement for Osteoarthritis

“Overweight and obesity are linked more to the need for a total knee replacement (TKR) vs a total hip replacement (THR) for osteoarthritis (OA), according to the results of a case-control study reported in the May 27 Online First issue of the Annals of the Rheumatic Diseases. ‘The relationship between high body mass index (BMI) and knee osteoarthritis (OA) is well established,’ write Dr. Jonas Franklin, from Lund University in Lund, Sweden, and colleagues. ‘The purpose of this study was to explore the relationship between BMI and hip and knee OA leading to arthroplasty in Icelandic men and women.’ ‘This study supports a positive association between high BMI and TKR in both sexes, but for THR the association with BMI seems to be weaker, and possibly negligible for women,’ the study authors write. ‘We found that high BMI was a risk factor for THR only in obese men, and not in overweight or obese women.’”

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