Table 3.
ROTEM parameters (prior to reimplantation) in patients with or without persistent periprosthetic joint infection.
| Variables | With Persistent Infection (n = 6) |
Without Persistent Infection (n = 64) |
p-Value |
|---|---|---|---|
| EXTEM CT (s) | 72.3 ± 1.9; 72.0 (71.0–74.0) | 74.5 ± 33.1; 70.0 (64.0–75.0) | 0.38 |
| EXTEM CFT (s) | 85.8 ± 10.3; 83.5 (78.0–88.0) | 81.1 ± 33.1; 85.0 (60.5–91.0) | 0.52 |
| EXTEM A10 (mm) | 61.0 ± 4.1; 61.0 (57.0–64.0) | 51.7 ± 12.1; 52.0 (45.0–59.5) | 0.030 |
| EXTEM MCF (mm) | 72.3 ± 6.1; 73.0 (68.0–74.0) | 60.8 ± 11.9; 62.0 (54.0–69.5) | 0.010 |
| EXTEM Alpha angle | 72.6 ± 8.5; 73.5 (64.0–81.0) | 70.9 ± 5.7; 72.0 (68.0–75.0) | 0.65 |
| EXTEM LI60 (%) | 92.6 ± 1.3; 92.5 (92.0–93.0) | 93.1 ± 5.1; 93.0 (90.0–97.5) | 0.65 |
| INTEM CT (s) | 182.8 ± 5.4; 185.0 (180.0–187.0) | 186.6 ± 37.5; 183.5 (166.0–196.5) | 0.96 |
| INTEM CFT (s) | 70.3 ± 6.9; 69.5 (65.0–75.0) | 75.1 ± 52.1; 69.0 (50.5–79.5) | 0.75 |
| INTEM A10 (mm) | 64.0 ± 4.3; 63.0 (62.0–68.0) | 52.3 ± 10.5; 53.0 (47.0–59.0) | 0.004 |
| INTEM MCF (mm) | 70.3 ± 4.3; 70.5 (68.0–74.0) | 60.2 ± 9.5; 60.5 (54.5–67.5) | 0.006 |
| INTEM Alpha angle | 77.1 ± 12.2; 75.0 (70.0–80.0) | 75.1 ± 5.7; 76.5 (70.0–79.5) | 0.98 |
| INTEM LI60 (%) | 91.8 ± 4.7; 92.0 (90.0–95.0) | 90.5 ± 4.7; 92.0 (88.0–94.0) | 0.59 |
| FIBTEM CT (s) | 49.1 ± 3.3; 48.5 (48.0–50.0) | 50.0 ± 5.1; 50.0 (47.0–52.0) | 0.48 |
| FIBTEM A10 (mm) | 17.3 ± 5.2; 17.5 (12.0–19.0) | 11.6 ± 5.2; 11.0 (8.5–15.0) | 0.023 |
| FIBTEM MCF (mm) | 24.5 ± 7.4; 22.5 (18.0–32.0) | 13.4 ± 5.6; 13.5 (9.0–17.0) | 0.001 |
Data are presented as mean ± SD or median and interquartile range (IQR). The non-parametric Wilcoxon rank-sum test was used for comparison between groups. Abbreviations: CT, clotting time; CFT, clot formation time; A10, clot amplitude at 10 min; MCF, maximum clot firmness; LI60, lysis index at 60 min. Bold indicates statistical significance at p value < 0.05.