Table 4.
Univariate analysis of risk for complications and reoperations.
| Variables | Without complications (n = 86) | With complications (n = 24) | p | Without reoperations (n = 92) | With reoperations (n = 18) | p |
|---|---|---|---|---|---|---|
| Age | 51.10 ± 11.04 | 52.58 ± 7.99 | 1.0001 | 51.03 ± 11.02 | 53.44 ± 6.59 | 0.8241 |
| Sex | 0.1012 | 0.2652 | ||||
| Female | 34 (30.9%) | 14 (12.7%) | 38 (34.5%) | 10 (9.1%) | ||
| Male | 52 (47.3%) | 10 (9.1%) | 54 (49.1%) | 8 (7.3%) | ||
| Side | 0.3562 | 0.3032 | ||||
| Right | 41 (37.3%) | 14 (12.7%) | 44 (40.0%) | 11 (10.0%) | ||
| Left | 45 (40.9%) | 10 (9.1%) | 48 (43.6%) | 7 (6.4%) | ||
| Garden classification | 0.0462 | 0.0672 | ||||
| I, II | 24 (21.8%) | 2 (1.8%) | 25 (22.7%) | 1 (0.9%) | ||
| III, IV | 62 (56.4%) | 22 (20.0%) | 67 (60.9%) | 17 (15.5%) | ||
| Pauwels classification | 0.1302 | 0.1223 | ||||
| I | 23 (20.9%) | 2 (1.8%) | 24 (21.8%) | 1 (0.9%) | ||
| II | 42 (38.2%) | 13 (11.8%) | 45 (40.9%) | 10 (9.1%) | ||
| III | 21 (19.1%) | 9 (8.2%) | 23 (20.9%) | 7 (6.4%) | ||
| Fracture level | 0.8203 | 1.0003 | ||||
| Subcapital | 48 (43.6%) | 15 (13.6%) | 52 (47.3%) | 11 (10.0%) | ||
| Midcapital | 31 (28.2%) | 8 (7.3%) | 33 (30.0%) | 6 (5.5%) | ||
| Basicervical | 7 (6.4%) | 1 (0.9%) | 7 (6.4%) | 1 (0.9%) | ||
| Reduction classification | 0.0202 | 0.0432 | ||||
| Anatomic reduction | 35 (31.8%) | 6 (5.5%) | 36 (32.7%) | 5 (4.5%) | ||
| Positive buttress position reduction | 30 (27.3%) | 5 (4.5%) | 24 (21.8%) | 10 (9.1%) | ||
| Negative buttress position reduction | 21 (19.1%) | 13 (11.8%) | 32 (29.1%) | 3 (2.7%) | ||
| Garden alignment index angles | ||||||
| AP | 164.5 ± 3.6 | 163.7 ± 3.7 | 0.3161 | 164.3 ± 3.7 | 164.3 ± 3.2 | 0.7961 |
| Lateral | 177.7 ± 2.1 | 176.6 ± 2.9 | 0.1371 | 177.6 ± 2.1 | 176.7 ± 3.1 | 0.5231 |
| CTI (every 0.1) | 0.0262 | 0.0462 | ||||
| 0.4-0.5 | 14 (12.7%) | 9 (8.2%) | 16 (14.5%) | 7 (6.4%) | ||
| 0.5-0.6 | 47 (42.7%) | 13 (11.8%) | 50 (45.5%) | 10 (9.1%) | ||
| 0.6-0.7 | 25 (22.7%) | 2 (1.8%) | 26 (23.6%) | 1 (0.9%) | ||
| TCD | 0.9542 | 0.7742 | ||||
| <5 mm | 64 (58.2%) | 18 (16.4%) | 69 (62.7%) | 13 (11.8%) | ||
| ≥5 mm | 22 (20.0%) | 6 (5.5%) | 23 (20.9%) | 5 (4.5%) | ||
| Angle of inferior screw | 0.0053 | 0.0133 | ||||
| <125° | 5 (4.5%) | 2 (1.8%) | 3 (2.7%) | 4 (3.6%) | ||
| ≥125° | 84 (76.4%) | 19 (17.3%) | 89 (80.9%) | 14 (12.7%) | ||
AP: anterior-posterior; CTI: cortical thickness index; TCD: tip-caput distance. 1Mann-Whitney U-test; 2chi-square test; 3Fisher's exact test.