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

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

SUBMITTER: Tooley TR 

PROVIDER: S-EPMC6470352 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature