期刊
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
卷 23, 期 6, 页码 1824-1832出版社
SPRINGER
DOI: 10.1007/s00167-014-3301-1
关键词
Total knee arthroplasty; Body mass index; Obesity; Systematic review; Meta-analysis
资金
- China Health Ministry Program [201302007]
The body mass index (BMI) is widely recognized as a prognostic factor in multiple operations; however, the relationship between the BMI and outcomes following total knee arthroplasty (TKA) is extensively debated. We aimed to evaluate the effect of the BMI at different cutoff values on the outcomes following primary TKA. Electronic databases (PubMed/Medline, CENTRAL, Embase and Web of Science) were systematically searched for studies investigating the association between the BMI and outcomes following primary TKA. Two investigators independently reviewed studies for eligibility, assessed the study quality using the Newcastle-Ottawa Scale and extracted the data. A meta-analysis was performed using Review Manager software. Twenty-eight articles including a total of 20,988 TKAs were identified. The postoperative Knee Society Score appeared to trend lower in obese (BMI a parts per thousand yen 30 kg/m(2)) patients than in non-obese (BMI < 30 kg/m(2)) patients. The meta-analysis showed that revision with follow-up a parts per thousand yen5 years, any infection, superficial infection and deep vein thrombosis occurred statistically more frequently in obese patients, whereas a deep infection occurred statistically more frequently in morbidly obese (BMI a parts per thousand yen 40 kg/m(2)) patients than in non-obese patients. No differences in aseptic loosening with follow-up a parts per thousand yen5 years, pulmonary embolism and perioperative mortality rates were found between obese and non-obese patients. Patients with a BMI a parts per thousand yen 30 kg/m(2) are at a higher risk of lower functional scores and developing complications following primary TKA. It appears reasonable to encourage obese patients to lose weight before selective TKA. Prognostic study, Level III.
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