Table 1.
Demographics and inflammatory markers of patient undergoing septic compared to aseptic total knee revision.
| Septic Revisions (n=147) | Aseptic Revisions (n=132) | P-value | |
|---|---|---|---|
| Age (yr) | 66.98±10.54 | 64.06±10.50 | 0.023 |
| Gender (male) | 79 (53.7%) | 55 (41.7%) | 0.055 |
| BMI (kg/m2) | 31.71±7.69 | 32.04±5.67 | 0.691 |
| Laterality (left) | 74 (50.3%) | 65 (49.2%) | 0.905 |
| Primary/Revision◦ (revision) | 54 (36.73%) | 24 (18.18%) | 0.001 |
| Elixhauser Comorbidity Score | 2.36±1.45 | 1.67±1.27 | <0.001 |
| ASA (>3)* | 73 (71.57%)* | 73 (55.30%) | 0.004 |
| Serum markers | |||
| ESR (mm/hr) | 69.55±32.99 | 20.93±16.61 | <0.001 |
| CRP (mg/dL) | 10.39±10.01 | 0.62±0.95 | <0.001 |
| WBC (x103/µL) | 9.30±4.14 | 7.20±2.02 | <0.001 |
| PMN (%) | 69.83±13.68 | 60.46±7.85 | <0.001 |
| Synovial fluid markers | |||
| sWBC (cells/µL) | 90064.14±155270.56 | 1436.13±6121.19 | <0.001 |
| sPMN (%) | 87.07±11.69 | 28.46±23.57 | <0.001 |
Years (yr); Kilogram (Kg); Meter (m); American Society of Anesthesiologists (ASA); Celsius (°C); Erythrocyte Sedimentation Rate (ESR); C-Reactive Protein (CRP); White Blood Cells (WBC); Polymorphonuclear Leukocytes (PMN); Synovial Fluid White Blood Cells (sWBC); Synovial Fluid Polymorphonuclear Leukocytes (sPMN); Millimeter (mm); Hour (hr); Milligram (mg); Microliter (µL). *Information on ASA was available for 101 patients in the septic group. ◦Current revision is following a primary or revision surgery