Baseline characteristic | Non-DMSA group, N = 222 | DMSA group, N = 252 | p |
---|---|---|---|
Demographic characteristics | |||
Age(\(\overline{X }\)±S) | 66.8 ± 7.8 | 66.2 ± 7.9 | 0.484 |
Female (N, %) | 154 (69.4%) | 236 (93.7%) | < 0.001* |
BMI(\(\overline{X }\)±S, kg/m2) | 26.4 ± 3.5 | 25.4 ± 3.7 | 0.003* |
Diagnosis (RA/OA) | 1/221 | 12/240 | 0.004* |
Preoperative knee ROM (°) | 99.0 ± 17.2 | 100.0 ± 15.1 | 0.480 |
Preoperative HSS | 49.9 ± 8.3 | 48.9 ± 8.4 | 0.275 |
Comorbidities (N, %) | |||
Hypertension | 113 (50.9%) | 138 (54.8%) | 0.401 |
Diabetes | 31 (14.0%) | 41 (16.3%) | 0.485 |
Coronary heart disease | 15 (6.8%) | 16 (6.3%) | 0.858 |
Preoperative anemia | 6 (6.8%) | 46 (18.3%) | < 0.001* |
Preoperative laboratories | |||
HB (g/L) | 140.2 ± 11.0 | 125.1 ± 10.2 | < 0.001* |
Hct | 42.0 ± 3.1 | 38.3 ± 3.1 | < 0.001* |
ESR (mm/h) | 21.3 ± 20.2 | 22.4 ± 17.8 | 0.116 |
CRP (mg/L) | 3.50 ± 2.77 | 3.77 ± 3.67 | 0.372 |
IL-6 (mg/L) | 3.8 ± 2.4 | 4.3 ± 4.2 | 0.126 |
Operative variables | |||
ASA class (N, %) | 0.959 | ||
1–2 | 174 (78.4%) | 198 (78.6%) | |
≥ 3 | 48 (21.6%) | 54 (21.4%) | |
Drainage use (N, %) | 42 (18.9%) | 66 (26.2%) | 0.060 |
TXA use (N, %) | 217 (97.7%) | 226 (89.7%) | < 0.001* |
Operative time (min) | 76.4 ± 12.1 | 77.7 ± 15.5 | 0.340 |
Intraoperative blood loss (mL) | 110.0 ± 22.8 | 130.9 ± 34.7 | < 0.001* |