Characterization of hip and knee arthroplasties and factors associated with infection

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• 作者：Cibele Zdebsky da Silva Pinto^a ; Francine Taporosky Alpendre^b ; ^{franalpendre@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Christiane Johnscher Niebel Stier^c ; Eliane Cristina Sanches Maziero^b ; Paulo Gilberto Cimbalista de Alencar^d ; Elaine Drehmer de Almeida Cruz^b
• 关键词：Patient safety ; Hospital infection ; Arthroplasty ; Intraoperative care ; Epidemiology
• 刊名：Revista Brasileira de Ortopedia (English Edition)
• 出版年：2015
• 出版时间：November-December 2015
• 年：2015
• 卷：50
• 期：6
• 页码：694-699
• 全文大小：504 K

文摘

To characterize arthroplasty procedures, calculate the surgical infection rate and identify related risk factors.

Methods

This was a retrospective cohort study. Data on operations performed between 2010 and 2012 were gathered from documental sources and were analyzed with the aid of statistical software, using Fisher's exact test, Student's t test and the nonparametric Mann–Whitney and Wilcoxon tests.

Results

421 total arthroplasty procedures performed on 346 patients were analyzed, of which 208 were on the knee and 213 on the hip. It was found that 18 patients (4.3%) were infected. Among these, 15 (83.33%) were reoperated and 2 (15.74%) died. The prevalence of infection in primary total hip arthroplasty procedures was 3%; in primary total knee arthroplasty, 6.14%; and in revision of total knee arthroplasty, 3.45%. Staphylococcus aureus was prevalent. The length of the surgical procedure showed a tendency toward being a risk factor (p = 0.067).

Conclusion

The prevalence of infection in cases of primary total knee arthroplasty was greater than in other cases. No statistically significant risk factors for infection were identified.