Table 1

Pre-, intra-, and postoperative factors of deep infection in tumor endoprostheses
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

Morii et al.

Morii et al. BMC Musculoskeletal Disorders 2013 14:51   doi:10.1186/1471-2474-14-51

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