Table 2 Characteristics of reoperation and non-reoperation patients
Characteristics | Reoperation, n = 28 (%) | Non-reoperation, n = 227 (%) | P value |
|---|---|---|---|
 Gender |  |  | 0.362 |
  Male | 9 (32.1) | 55 (24.2) |  |
  Female | 19 (67.9) | 172 (75.8) |  |
 Age | 68.0 (67.0–73.0) | 72.0 (67.0–78.0) | 0.015* |
 Injured side |  |  | 0.401 |
  Right | 10 (35.7) | 100 (44.1) |  |
  Left | 18 (64.3) | 127 (55.9) |  |
 Smoking |  |  | 0.549 |
  No | 25 (89.3) | 210 (92.5) |  |
  Yes | 3 (10.7) | 17 (7.5) |  |
 Alcohol consumption |  |  | 0.302 |
  No | 26 (92.9) | 219 (96.5) |  |
  Yes | 2 (7.1) | 8 (3.5) |  |
 ASA classification |  |  | 0.411 |
  I–II | 23 (82.1) | 199 (87.7) |  |
  III–IV | 5 (17.9) | 28 (12.3) |  |
 Chronic kidney disease |  |  | 0.435 |
  No | 26 (92.9) | 218 (96.0) |  |
  Yes | 2 (7.1) | 9 (4.0) |  |
 Hypertension |  |  | 0.695 |
  No | 11 (39.3) | 98 (43.2) |  |
  Yes | 17 (60.7) | 129 (56.8) |  |
 Diabetes mellitus |  |  | 0.205 |
  No | 24 (85.7) | 170 (74.9) |  |
  Yes | 4 (14.3) | 57 (25.1) |  |
 Charlson’s WIC | 3.54 ± 1.26 | 3.70 ± 1.35 | 0.541 |
 Cerebrovascular disease |  |  | 0.425 |
  No | 23 (82.1) | 171 (75.3) |  |
  Yes | 5 (17.9) | 56 (24.7) |  |
 COPD |  |  | 0.217 |
  No | 24 (85.7) | 210 (92.5) |  |
  Yes | 4 (14.3) | 17 (7.5) |  |
 Preoperative functional status |  |  | 0.713 |
  Using ambulatory aid | 2 (7.1) | 21 (9.3) |  |
  Independent ambulator | 26 (92.9) | 206 (90.7) |  |
 Interval to surgery |  |  | 0.335 |
  < 72 h | 14 (50.0) | 81 (35.7) |  |
  72 - 120 h | 7 (25.0) | 72 (31.7) |  |
  > 120 h | 7 (25.0) | 74 (32.6) |  |
 Pauwel’s classification |  |  | 0.031* |
  I | 7 (25.0) | 86 (37.9) |  |
  II | 9 (32.1) | 94 (41.4) |  |
  III | 12 (42.9) | 47 (20.7) |  |
 Posterior tilt angle |  |  | 0.023* |
  ≥ 20° | 13 (46.4) | 59 (26.0) |  |
  < 20° | 15 (53.6) | 168 (74.0) |  |
 Anesthesia type |  |  | 0.168 |
  General anesthesia | 9 (32.1) | 47 (20.7) |  |
  Regional anesthesia | 19 (67.9) | 180 (79.3) |  |
 Surgical time (min) | 75.89 ± 39.77 | 80.68 ± 29.64 | 0.439 |
 WBC (>10 × 109 /L) | 2 (7.1) | 35 (15.4) | 0.392 |
 RBC (< lower limit) a | 8 (28.6) | 49 (21.6) | 0.403 |
 PLT (> 300 × 109 /L) | 2 (7.1) | 14 (6.2) | 0.841 |
 LYM (< 1.1 × 109/L) | 10 (35.7) | 80 (35.2) | 0.961 |
 HGB (< lower limit) b | 10 (35.7) | 51 (22.5) | 0.121 |
 ALT (> 40 U/L) | 4 (14.3) | 16 (7.0) | 0.251 |
 AST (> 40 U/L) | 4 (14.3) | 11 (4.8) | 0.045* |
 ALP (>125 U/L) | 7 (25.0) | 21 (9.3) | 0.012* |
 Na+ (< 135 mmol/L) | 7 (25.0) | 29 (12.8) | 0.080 |
 TP (< 60 g/L) | 8 (28.6) | 41 (18.1) | 0.183 |
 ALB (< 35 U/L) | 8 (28.6) | 29 (12.8) | 0.025* |
 D-dimer (> 0.5 mg/L) | 17 (60.7) | 151 (66.5) | 0.541 |
 Interval to weight-bearing | 6.39 ± 2.74 | 8.24 ± 2.73 | 0.001* |
 Harris Hip Score | 76.68 ± 7.69 | 81.59 ± 8.60 | 0.004* |
 VAS | 2.57 ± 1.60 | 1.78 ± 1.30 | 0.016* |