"Along with age and injuries, obesity is a leading risk factor for osteoarthritis (OA), a painful and disabling joint disease. While excessive weight can aggravate the toll on almost any joint, obesity has been associated with a higher prevalence of hip OA and an increase in total hip arthroplasty (THA)...Scissors over paper, paper over rock, rock over scissors.
Overall, 20 complications occurred in 17 (33 percent) of the 52 obese patients, compared with 18 events in 13 (9 percent) of the 152 non-obese patients. In terms of specific complications, the incident rate was 4 times higher for surgical site infection and 3.5 times higher for dislocation. Even more striking, the incidence rate for occurrence of one or more adverse events rose with rising BMI. This increase was small between normal and overweight patients - 1.5 times higher. Yet, it became significantly greater in the group with a BMI between 30 and 34.9 - 4.5 times higher than normal weight patients. And it escalated to an alarmingly increase in the group with a BMI of 35 or more - 10.9 times higher. In these calculations, adjustments were performed for age, sex, and preoperative health status. "
Fat over metal hips.
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