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J Arthroplasty. 2014 Mar;29(3):458-64.e1. doi: 10.1016/j.arth.2013.07.030. Epub 2013 Sep 7.

The impact of pre-operative weight loss on incidence of surgical site infection and readmission rates after total joint arthroplasty.

Author information

1
Joint Doctoral Program Epidemiology, San Diego State University/University of California, San Diego, California.
2
Department of Family and Preventive Medicine, University of California San Diego School of Medicine, San Diego California.
3
Department of Biostatistics, University of California San Diego School of Medicine, San Diego, California.
4
Graduate School of Public Health, San Diego State University, San Diego, California.
5
School of Exercise & Nutritional Sciences, San Diego State University, San Diego, California.
6
Southern California Permanente Medical Group, Department of Orthopaedic Surgery, San Diego, California.

Abstract

This study characterized a cohort of obese total hip arthroplasty (THA) and total knee arthroplasty (TKA) patients (1/1/2008-12/31/2010) and evaluated whether a clinically significant amount of pre-operative weight loss (5% decrease in body weight) is associated with a decreased risk of surgical site infections (SSI) and readmissions post-surgery. 10,718 TKAs and 4066 THAs were identified. During the one year pre-TKA 7.6% of patients gained weight, 12.4% lost weight, and 79.9% remained the same. In the one year pre-THA, 6.3% of patients gained weight, 18.0% lost weight, and 75.7% remained the same. In TKAs and THAs, after adjusting for covariates, the risk of SSI and readmission was not significantly different in the patients who gained or lost weight pre-operatively compared to those who remained the same.

KEYWORDS:

Total hip arthroplasty; Total knee arthroplasty; infection; obesity; readmission; weight loss

PMID:
24018161
DOI:
10.1016/j.arth.2013.07.030
[Indexed for MEDLINE]
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