Obesity Factors in Failure Analysis of Cemented Total Hip Replacement

Lanfeng Zhang, Hongtao Liu, Feng Yuan, Tianchi Chen, Lin Xu, Jingmao Wang, Yancheng Wang, Ziyue Tong

Article ID: 3511
Vol 39, Issue 1, 2025
DOI: https://doi.org/10.23812/j.biol.regul.homeost.agents.20253901.12

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Abstract

Background: This article mainly analyzed the influence of obesity constitution on the failure of cemented total hip replacement. Methods: By collecting body mass index (BMI) data of patients with hip joint and bone mineral density (BMD) of femur, the age, gender and number of patients were statistically analyzed, and the influence of body weight on postoperative implant force was analyzed by finite element method modeling analysis. Results: Studies have found that obesity and BMI reaching overweight or obesity standards will aggravate the symptoms of hip patients, and the effects will be different between different genders. The effects of body weight on hip replacement, fracture of bone cement stem, sinking of prosthesis stem and loosening of bone cement-stem interface were analyzed in detail. Conclusions: It was proved that BMI had a great correlation with postoperative failure. In addition, the effect of weight loss drugs on postoperative rehabilitation immune system was discussed.

Keywords

obesity; failure; total hip replacement; immune system


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