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Table 2A Culture results achieved by homogenization of tissue samples using Disperser vs. Bead milling method

From: Evaluation of two different semi-automated homogenization techniques in microbiological diagnosis of periprosthetic joint infection: disperser vs. bead milling method

PJI1 (n = 40)

Preference of method

(no. [%])

Additional number of positive samples/

(No. of cases)

Culture positive (n = 34)

Concordance 23/(68)

0

 

Disperser 7/(20)

1/(6); 2/(1)

 

Bead milling 4/(12)

1/(1); 2/(3)

 

Comments

Previously detected microorganisms

Culture negative (n = 6)

2 cases previously positive by TC*

Cutibacterium spp.

 

4 cases previously positive by TC*

Eikenella corrodens, Granulicatella adiacens, Actinomyces turicensis, Streptococcus species., Coagulase-negative staphylococci (CoNS)

AF2 (n = 40)

  

Culture negative (n = 40)

Concordance 40/(100)

0

  1. 1Periprosthetic joint infection; 2Aseptic failure; *TC, tissue culture