The impact of pre-operative obesity state on long-term revision rate after primary total hip arthroplasty
Abstract：Objective Objective To study the impact of pre-operative obesity state on long-term revision rate after primary total hip arthroplasty. Methods 418 patients were enrolled in this retrospective study, including 262 males and 156 females. All the patients underwent primary total hip arthroplasty (THA) in Beijing Pinggu hospital from January 2014 to December 2015. The patients were divided into obesity group (BMI ≥30 kg/m2) and non obese group (BMI<30 kg/m2) according to the preoperative body mass index (BMI). The difference of long-term revision after THA between the two groups was compared. Results The percentage of revision after THA at 5 years was 5.4% for obese group and 3.1% for non-obese group,there was no significant difference between the two groups (P > 0.05). The percentage of revision after THA revised at 10 years was 15.5% for obese group and 8.0% for non-obese group,the difference between the two groups was significant (P < 0.05). 10 years after primary THA,compared to non-obese patients, the risk of revision in obese patients was increased by 112 percent(OR=2.12,95%CI,1.13~3.98), and the risk of revision due to aseptic loosening in obese patients was increased by 163 percent (OR=2.63,95%CI,1.03~6.77). Conclusion Pre-operative obesity can increase the risk of long-term revision THA.
Keywords：ObesityTotal hip arthroplastyRevision
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 49-51 )