Table 1.
Baseline characteristics of the cohorts consisting of PJI and FRI patients.
| Characteristic | PJI (n = 81) | FRI (n = 86) |
|---|---|---|
| Demographic data | ||
| Sex (male) | 48 (59.3%) | 62 (71.1%) |
| Age (years) | 70.6 ± 10.3 | 55.9 ± 16.7 |
| BMI (kg/m2) | 31.2 ± 8.2 | 27.5 ± 5.5 |
| ASA score | 3 [–4] | 2 [1–4] |
| CCI | 2 [0–6] | 1 [0–6] |
| Site | ||
| Hip | 34 (42.0%) | 11 (12.8%) |
| Knee | 42 (51.9%) | 6 (7.0%) |
| Shoulder | 5 (6.2%) | 2 (2.3%) |
| Forearm | 38 (44.2%) | |
| Tibia | 14 (16.3%) | |
| Ankle | 14 (16.3%) | |
| Foot | 1 (1.2%) | |
| Revision prosthesis | 19 (23.5%) | |
| Delay from prosthesis implantation to surgery/delay from trauma to infection | 3.95 years [9 days–29 years] |
0.39 years [3 days–9.6 years] |
| Microbiologic documentation | ||
| Negative culture | 11 (13.6%) | 12 (14.0%) |
| Polymicrobial infection | 14 (17.3%) | 9 (10.5%) |