Table 3.
Comparison of microorganism frequency between cemented and cementless group
| Isolated microorganismb | Cementeda (n = 36) | Cementless (n = 72) | p value |
|---|---|---|---|
| Gram-positive bacteria | |||
| Coagulase-negative Staphylococcus (sensitive) | 21 | 41 | 0.891 |
| Coagulase-negative Staphylococcus (resistant) | 1 | 2 | 1.000 |
| Methicillin-sensitive Staphylococcus aureus | 5 | 5 | 0.241 |
| Methicillin-resistant Staphylococcus aureus | 2 | 3 | 0.746 |
| Cutibacterium spp. | 1 | 13 | 0.026 |
| Staphylococcus lugdunensis | 1 | 3 | 0.719 |
| Viridans group Streptococcus | 1 | 4 | 0.517 |
| Enterococcus faecalis | 2 | 6 | 0.603 |
| Enterococcus faecium | 2 | 0.044 | |
| Peptostreptococcus micros | 1 | 2 | 1.000 |
| Finegoldia magna | 3 | 0.214 | |
| Corynebacterium spp. | 3 | 0.214 | |
| Actinomyces spp. | 1 | 0.478 | |
| Peptoniphilus spp. | 1 | 0.478 | |
| Cellulomonas | 1 | 0.478 | |
| Gram-negative bacteria | |||
| Escherichia coli | 6 | 0 | 0.000 |
| Enterobacter cloacae | 1 | 0.478 | |
| Polymicrobial | 12 | 25 | 0.866 |
| Negative culture | 2 | 7 | 0.460 |
p values were calculated from chi-square test; bold—the significance level was p < 0.05
aCemented or hybrid total hip arthroplasty
bIncludes preoperative and intraoperative cultures during first-stage surgery