Preoperative | |
---|---|
Age (years) | |
Range | 9–86 |
Mean | 34.7 |
Median | 24 |
Sex | |
Male | 32 |
Female | 25 |
Comorbidity as infectious risk | |
Yes | 7 |
No | 50 |
Tumor origin | |
Primary | 51 |
Metastatic | 6 |
Location | |
Distal femur | 34 |
Proximal tibia | 23 |
Grade | |
Low | 13 |
High | 38 |
Extracompartmental tumor extension | |
Yes | 47 |
No | 10 |
Chemotherapy | 38 |
Radiotherapy | 8 |
Intraoperative extraarticular resection | 13 |
Bone resection length (cm) | |
Range | 10–26 |
Mean | 15.2 |
Median | 14 |
Number of antibiotics | |
Single | 27 |
Two | 30 |
Duration of operation (min) | |
Range | 170–1440 |
Mean | 376 |
Median | 305 |
Intraoperative blood loss (mL) | |
Range | 90–10500 |
Mean | 977.7 |
Median | 585 |
Extent of partial resection of the quadriceps muscle (femur cases) | |
Mean | 1.8 |
Median | 2 |
Muscle flap for anterior aspect of the tibia (tibia cases) | |
Yes | 18 |
No | 5 |
Postoperative | |
Bad skin condition | 20 |
Surface infection | 9 |
Time from surgery until infection (months) | |
Range | 0–85 |
Mean | 13 |
Median | 4 |
Loosening | 5 |
Discharge/pus at infection presentation | 32 |
Body temperature at infection presentation (°C) | |
Range | 35.8–40.6 |
Mean | 38.3 |
Median | 38.5 |
C-reactive protein value at infection presentation (mg/dL) | |
Range | 0.2–45.1 |
Mean | 11.4 |
Median | 9.0 |
Microbial culture | |
Staphylococcus aureus | 27 |
Methicillin-resistant S. aureus | 10 |
Staphylococcus epidermidis | 10 |