Table 2 Risk factors of 21 patients for early deep surgical site infection (SSI) after posterior lumbar fusion with instrumentation
Risk factors | Number of patients | % |
|---|---|---|
Elderly (age >70 years) | 8 | 38.1 |
Body mass index > 30 | 4 | 19.0 |
Smoking | 5 | 23.8 |
Diabetes mellitus | 6 | 28.6 |
Coronary artery disease | 3 | 14.3 |
Chronic obstructive pulmonary disease | 4 | 19.0 |
Anemia | 2 | 9.5 |
Low serum albumin | 4 | 19.0 |
Operation time > 3h | 7 | 33.3 |
Perioperative blood loss > 500 ml | 8 | 38.1 |