Development of a periprosthetic joint infection by Abiotrophia defectiva years after total knee arthroplasty

Document Type

Article

Publication Date

1-31-2019

Publication Title

Arthroplasty Today

Abstract

A 74-year-old male presented with acute right knee pain and inability to ambulate. The patient had a total knee arthroplasty, previously complicated by a periprosthetic femur fracture requiring surgical fixation and subsequent methicillin-resistant Staphylococcus epidermidis periprosthetic joint infection treated via two-stage revision. Cultures from knee fluid aspiration were positive for Abiotrophia defectiva. Identification was confirmed using matrix-assisted laser desorption ionization-time of flight mass spectrometry. The patient underwent a two-stage revision. Between stages, the patient received intravenous ceftriaxone for six weeks with subsequent normalization of inflammatory markers. Diagnosis of periprosthetic joint infection with identification of the organism is important to guide appropriate treatment.

Volume

5

Issue

1

First Page

49

Last Page

51

DOI

10.1016/j.artd.2018.12.002

ISSN

2352-3441

PubMed ID

31020021

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