Table 4.
Univariate analysis of postoperative complications in nonhip fracture patients after total hip arthroplasty.
| 30-day complications | 90-day complications | |||||
|---|---|---|---|---|---|---|
| Complication (n = 49) | Noncomplication (n = 1586) | P | Complication (n = 61) | Noncomplication (n = 1574) | P | |
| Transfusion | <0.001 | <0.001 | ||||
| Yes | 19 (38.8) | 239 (15.1) | 21 (34.4) | 237 (15.1) | ||
| No | 30 (61.2) | 1347 (84.9) | 40 (65.6) | 1337 (84.9) | ||
| Age, years | 61.59 ± 10.72 | 57.42 ± 11.38 | 0.011 | 61.56 ± 10.50 | 57.39 ± 11.39 | 0.005 |
| Gender (M) | 27 (55.1) | 915 (57.7) | 0.718 | 33 (54.1) | 909 (57.8) | 0.571 |
| BMI, km/㎡ | 25.10 ± 3.61 | 25.03 ± 3.67 | 0.902 | 25.13 ± 3.46 | 25.03 ± 3.68 | 0.830 |
| CCI | 2.27 ± 1.38 | 1.72 ± 1.19 | 0.002 | 2.30 ± 1.42 | 1.71 ± 1.19 | <0.001 |
| Indications | 0.774 | 0.423 | ||||
| ANFH | 40 (81.6) | 1242 (78.3) | 50 (82.0) | 1232 (78.3) | ||
| OA | 6 (12.2) | 156 (9.8) | 6 (9.8) | 156 (9.9) | ||
| RA | 0 (0.0) | 8 (0.5) | 0 (0.0) | 8 (0.5) | ||
| AS | 0 (0.0) | 9 (0.6) | 0 (0.0) | 9 (0.6) | ||
| DDH | 3 (6.1) | 166 (10.5) | 4 (6.6) | 165 (10.5) | ||
| Others | 0 (0.0) | 5 (0.3) | 1 (1.6) | 4 (0.3) | ||
| Smoking | 9 (18.4) | 404 (25.5) | 0.260 | 402 (25.5) | 11 (18.0) | 0.185 |
| Drinking | 13 (26.5) | 425 (26.8) | 0.967 | 422 (26.8) | 16 (26.2) | 0.920 |
| Anesthesia | 0.254 | 0.262 | ||||
| General | 18 (36.7) | 713 (45.0) | 23 (37.7) | 708 (45.0) | ||
| Nongeneral | 31 (63.3) | 873 (55.0) | 38 (62.3) | 866 (55.0) | ||
| Operation time, min | 99.37 ± 41.68 | 97.92 ± 45.43 | 0.826 | 103.76 ± 43.18 | 97.74 ± 45.39 | 0.309 |
| Blood loss, ml | 303.47 ± 268.11 | 262.42 ± 210.75 | 0.294 | 297.87 ± 258.38 | 262.37 ± 210.72 | 0.293 |
| Procedures | 0.776 | 0.661 | ||||
| Unilateral | 46 (93.9) | 1472 (92.8) | 58 (95.1) | 1460 (92.8) | ||
| Bilateral | 3 (6.1) | 114 (7.2) | 3 (4.9) | 114 (7.2) | ||
| Approach | 0.466 | 1.000 | ||||
| Anterior | 0 (0.0) | 17 (1.1) | 0 (0.0) | 17 (1.1) | ||
| Posterior | 49 (100) | 1569 (98.9) | 61 (100) | 1557 (98.9) | ||
| Drainage use | 14 (28.6) | 328 (20.7) | 0.181 | 16 (26.2) | 326 (20.7) | 0.298 |
| TXA use | 13 (26.5) | 591 (37.3) | 0.125 | 18 (29.5) | 586 (37.2) | 0.220 |
| Complication | ||||||
| Hypertension | 17 (34.7) | 415 (26.2) | 0.182 | 22 (36.1) | 410 (26.2) | 0.082 |
| Diabetes | 4 (8.2) | 112 (7.1) | 0.989 | 4 (6.6) | 112 (7.1) | 1.000 |
| Coronary hear disease | 4 (8.2) | 87 (5.5) | 0.625 | 6 (9.8) | 85 (5.4) | 0.231 |
| Cerebrovascular diseases | 6 (12.2) | 69 (4.4) | 0.024 | 8 (13.1) | 67 (4.3) | 0.003 |
| Arrhythmia | 0 (0.0) | 17 (1.1) | 1.000 | 1 (1.6) | 16 (1.0) | 0.478 |
| Respiratory diseases | 3 (6.1) | 66 (4.2) | 0.755 | 6 (9.8) | 63 (4.0) | 0.058 |
| Digestive diseases | 5 (10.2) | 93 (5.9) | 0.340 | 5 (8.2) | 93 (5.9) | 0.643 |
| Urinary diseases | 3 (6.1) | 32 (2.0) | 0.146 | 3 (4.9) | 32 (2.0) | 0.282 |
| Mental diseases | 0 (0.0) | 15 (0.9) | 1.000 | 0 (0.0) | 15 (1.0) | 1.000 |
| Fibroid | 1 (2.0) | 27 (1.7) | 0.576 | 1 (1.6) | 27 (1.7) | 1.000 |
| Preoperative Hb, g/L | 133.41 ± 14.24 | 136.04 ± 15.44 | 0.239 | 133.11 ± 14.97 | 136.07 ± 15.42 | 0.141 |
| Preoperative HCT, % | 39.89 ± 3.80 | 40.59 ± 4.08 | 0.237 | 39.78 ± 3.98 | 40.60 ± 4.07 | 0.125 |
| Preoperative RDW, % | 13.17 ± 0.71 | 13.13 ± 1.04 | 0.839 | 13.25 ± 0.80 | 13.13 ± 1.04 | 0.376 |
| Preoperative WBC, n/L | 6.53 ± 1.86 | 6.29 ± 1.76 | 0.351 | 6.68 ± 1.95 | 6.28 ± 1.75 | 0.083 |
| Preoperative PLT, n/L | 229.22 ± 66.16 | 232.95 ± 60.55 | 0.673 | 229.74 ± 64.22 | 232.95 ± 60.58 | 0.685 |
| Preoperative RET, 1012/L | 0.06 ± 0.02 | 0.06 ± 0.02 | 0.405 | 0.06 ± 0.02 | 0.06 ± 0.02 | 0.605 |
BMI: body mass index; CCI: Charlson comorbidity index; ANFH: avascular necrosis of femoral head; OA: osteoarthritis; RA: rheumatoid arthritis; AS: ankylosing spondylitis; DDH: developmental dysplasia of the hip; TXA: tranexamic acid; Hb: hemoglobin; HCT: hematocrit; RDW: red cell distribution width; WBC: white blood cell; PLT: platelet; RET: reticulocyte.