Table 2. Patient characteristics and outcomes in two-stage revision for knee prosthetic joint infection.
M: male, F: female, BMI: body mass index, ROM: range of motion, KSS: Knee Society Score, KS function score: Knee Society function score, MRSA: methicillin-resistant Staphylococcus aureus, CNS: coagulase negative Staphylococcus, MSSA: methicillin-sensitive Staphylococcus aureus, M. intracell: Mycobacterium intracellulare, S. capitis: Staphylococcus capitis, S. epidemidis: Staphylococcus epidermidis
† Follow-up after reimplantation
‡ average flex ROM after reimplantation
| Case no. | Age (year) | Sex | BMI (kg/m2) | Onset of postoperative infection (weeks) | Organism | Interval between stages (days) | Complication during the waiting period | Complication after reimplantation | Follow-up (days)† | Latest outcome | ||
| Flex ROM‡ (degree) | KSS | KS function score | ||||||||||
| 1 | 77 | F | 25.7 | 251.4 | MRSA | 121 | - | Infection | - | - | - | - |
| 2 | 82 | M | 22.6 | 137.6 | MRSA | 166 | - | Infection | - | - | - | - |
| 3 | 58 | M | 23.7 | 149.3 | CNS | 87 | - | - | 879 | 100 | 85 | 65 |
| 4 | 94 | F | 22.3 | 452.6 | Negative | - | Spacer dislocation | - | - | - | - | - |
| - | Negative | 101 | - | - | 1103 | 120 | 89 | 45 | ||||
| 5 | 59 | M | 33.4 | 27 | MSSA | 109 | - | - | 861 | 100 | 80 | 75 |
| 6 | 70 | M | 25.5 | 539 | MSSA | 130 | - | - | 641 | 110 | 82 | 90 |
| 7 | 73 | M | 29.9 | 2.7 | MSSA | 100 | - | - | 449 | 130 | 91 | 70 |
| 8 | 82 | F | 24.3 | 10.6 | MSSA | 91 | - | - | 450 | 100 | 95 | 95 |
| 9 | 83 | F | 23.4 | 20.1 | MSSA | 55 | - | - | 623 | 95 | 84 | 55 |
| 10 | 78 | M | 25.5 | 10.9 | MSSA | 84 | - | - | 357 | 130 | 81 | 100 |
| 11 | 71 | M | 24 | 29.9 | MSSA | 72 | - | - | 153 | 125 | 100 | 70 |
| 12 | 72 | F | 19.3 | 3.9 | MRSA | 91 | Infection | - | 272 | 110 | 92 | 80 |
| 13 | 70 | F | 25.1 | 19.4 | CNS, Candida glabrata | 114 | - | - | 187 | 100 | 62 | 55 |
| 14 | 69 | F | 23.2 | 206 | M.intracell | 80 | - | - | 191 | 110 | 90 | 65 |
| 15 | 63 | F | 34.9 | 18 | S.capitis, S.epidermidis | 85 | - | - | 197 | 125 | 90 | 90 |
| 16 | 68 | F | 23.1 | 23.3 | MSSA | 99 | - | - | 117 | 110 | 88 | 75 |
| Mean ± SD | 73.1 ± 9.4 | - | 25.4 ± 4.1 | 108.0 ± 175.4 | - | 92.7 ± 18.5 | - | - | 871 ± 188.8 | 111.8 ± 11.7 | 86.4 ± 8.6 | 73.6 ± 15.6 |