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Risk factors for total joint arthroplasty infection in patients receiving tumor necrosis factor α-blockers: a case-control study.

Abstract：

INTRODUCTION:The objective of this study was to assess natural microbial agents, history and risk factors for total joint arthroplasty (TJA) infections in patients receiving tumor necrosis factor (TNF)α-blockers, through the French RATIO registry and a case-control study. METHODS:Cases were TJA infections during TNFα-blocker treatments. Each case was compared to two controls (with TJA and TNFα-blocker therapy, but without TJA infection) matched on age (±15 years), TJA localization, type of rheumatic disorder and disease duration (±15 years). Statistical analyses included univariate and multivariate analyses with conditional logistic regression. RESULTS:In the 20 cases (18 rheumatoid arthritis), TJA infection concerned principally the knee (n = 12, 60%) and the hip (n = 5, 25%). Staphylococcus was the more frequent microorganism involved (n = 15, 75%). Four patients (20%) were hospitalized in an intensive care unit and two died from infection. Eight cases (40%) versus 5 controls (13%) had undergone primary TJA or TJA revision for the joint subsequently infected during the last year (P = 0.03). Of these procedures, 5 cases versus 1 control were performed without withdrawing TNFα-blockers (P = 0.08). In multivariate analysis, predictors of infection were primary TJA or TJA revision for the joint subsequently infected within the last year (odds ratio, OR = 88.3; 95%CI 1.1-7,071.6; P = 0.04) and increased daily steroid intake (OR = 5.0 per 5 mg/d increase; 1.1-21.6; P = 0.03). Case-control comparisons showed similar distribution between TNFα-blockers (P = 0.70). CONCLUSIONS:In patients receiving TNFα-blockers, TJA infection is rare but potentially severe. Important risk factors are primary TJA or TJA revision within the last year, particularly when TNFα-blockers are not interrupted before surgery, and the daily steroid intake.

journal_name

Arthritis Res Ther

journal_title

Arthritis research & therapy

authors

Gilson M,Gossec L,Mariette X,Gherissi D,Guyot MH,Berthelot JM,Wendling D,Michelet C,Dellamonica P,Tubach F,Dougados M,Salmon D

doi

10.1186/ar3087

subject

Has Abstract

pub_date

2010-01-01 00:00:00

pages

R145

issue

eissn

1478-6354

issn

1478-6362

pii

ar3087

journal_volume

pub_type

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Risk factors for total joint arthroplasty infection in patients receiving tumor necrosis factor α-blockers: a case-control study.