Members of the research team retrospectively reviewed data on 684 consecutive failed THA cases referred to a single academic center for revision. They found no significant association between obesity and cause of THA failure. However, the overall rate of primary THA failure before 5 years was 48.8 percent in obese patients and 37.1 percent in non-obese patients, and the rate of primary THA failure for aseptic loosening before 5 years was 30 percent in obese patients and 18 percent in non-obese patients. The research team notes that obesity was not a risk for revision for infection, but American Society for Anesthesiologists class ≥3 was independently associated with increased odds of primary THA failure for infection. Learn more...
