Research Article
Postoperative Management Strategy of Surgical Site Infection following Lumbar Dynesys Dynamic Internal Fixation
Table 1
Comparison of the observational indicators between Groups A and B.
| | | Group A | Group B | |
| Age (years) | | 56.9 ± 18.4 | 39.8 ± 13.0 | 0.016 |
| Surgical situation | Number of fenestration | 1.7 ± 1.1 | 1.7 ± 1.0 | 0.903∗ | Number of discectomy | 1.1 ± 0.4 | 1.2 ± 0.6 | 0.769∗ | Number of fixed segment | 2.2 ± 0.9 | 1.9 ± 0.7 | 0.323∗ | Operation time (min) | 195.8 ± 81.984 | 158.1 ± 70.7 | 0.208∗ | Blood loss (ml) | 385.7 ± 293.2 | 263.6 ± 180.4 | 0.134∗ | Blood transfusion (ml) | 182.1 ± 334.9 | 119.1 ± 210.8 | 0.809∗ |
| Clinical symptom | Incision exudation | 8 | 0 | | Low back pain (leg pain) | 4 | 7 | | Incision hydrops | 3 | 0 | | Red and swollen incision | 3 | 1 | 0.007# | Sinus tract | 2 | 2 | | Fever | 2 | 1 | | Abscess | 0 | 3 | |
| Inflammation indicator | WBC (×109/L) | 11.4 ± 3.0 | 8.2 ± 2.5 | 0.008 | N (%) | 79.6 ± 12.3 | 68.9 ± 9.9 | 0.029 | Thrombocyte (×109/L) | 296.7 ± 88.4 | 222.8 ± 54.1 | 0.023 | SR (mm/1 h) | 54.2 ± 26.8 | 34.2 ± 27.1 | 0.048∗ | CRP (mg/L) | 64.9 ± 88.0 | 13.7 ± 15.8 | 0.012∗ | Procalcitonin (ng/ml) | 2.5 ± 5.3 | 0.5 ± 1.0 | 0.639∗ |
| Pathogenic bacteria | Positive rate | 8/14 (57.1%) | 3/11 (27.2%) | 0.467# |
| Main infection site | Skin and subcutaneous tissue | 9 | 0 | 0.001# | Around internal instrument | 3 | 10 | Spinal canal | 1 | 1 | Intervertebral space | 1 | 0 |
| Main treatment | Mere antibiotics | 2 | 0 | 0.001# | Puncture (irrigation) | 1 | 2 | Debridement | 8 | 1 | Implant replacement | 2 | 0 | Implant removal | 1 | 8 |
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∗Mann-Whitney test; #Fisher’s exact test.
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