Table 2.
Patient and fracture characteristics by occurrence of complications
| Characteristics | n (%)* or mean ± SD (range) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AVN (n = 14) | No. AVN (n = 30) | p | Cox vara (n = 4) | No. vara (n = 40) | p | Nonunion (n = 2) | p | Preclosure (n = 7) | p | |
| Sex | 1.000 | 1.000 | 1.000 | 1.000 | ||||||
| Female | 5 (36) | 12 (40) | 1 (25) | 16 (40) | 1 (50) | 3 (43) | ||||
| Male | 9 (64) | 18 (60) | 3 (75) | 24 (60) | 1 (50) | 4 (57) | ||||
| Age | 9.57 ± 3.16 (5–14) | 8.73 ± 3.92 (2–14) | 0.454 | 8.50 ± 3.70 (5–13) | 9.05 ± 3.72 (2–14) | 0.792 | 11.5 ± 2.12 (10–13) | 0.303 | 9.43 ± 2.99 (6–13) | 0.701 |
| Injury mechanism | 0.817 | 1.000 | 1.000 | 0.613 | ||||||
| Sports-related injury | 8 (57) | 18 (60) | 2 (50) | 24 (60) | 2 (100) | 3 (43) | ||||
| Fall from height | 4 (29) | 6 (20) | 1 (25) | 9 (23) | 0 (0) | 2 (29) | ||||
| Car accident | 2 (14) | 6 (20) | 1 (25) | 7 (18) | 0 (0) | 2 (29) | ||||
| Delbet type | 0.019 | 0.662 | 1.000 | 0.335 | ||||||
| I | 1 (7) | 0 (0) | 0 (0) | 1 (3) | 0 (0) | 0 (0) | ||||
| II | 11 (79) | 14 (47) | 3 (75) | 22 (55) | 1 (50) | 6 (86) | ||||
| III | 2 (14) | 16 (53) | 1 (25) | 17 (43) | 1 (50) | 1 (14) | ||||
| Displaced fracture | 13 (93) | 24 (80) | 0.401 | 4 (100) | 33 (83) | 1.000 | 2 (100) | 1.000 | 6 (86) | 1.000 |
| Combined injury | 3 (21) | 9 (26) | 1.000 | 2 (50) | 8 (20) | 0.218 | 0 (0) | 1.000 | 2 (29) | 0.649 |
| Surgical reduction within 24 h after injury | 1 (7) | 6 (20) | 0.401 | 0 (0) | 7 (18) | 1.000 | 0 (0) | 1.000 | 0 (0) | 0.575 |
| Type of reduction | 1.000 | 0.302 | 1.000 | 0.654 | ||||||
| Close reduction | 4 (29) | 9 (30) | 0 (0) | 13 (33) | 0 (0) | 1 (14) | ||||
| Open reduction with capsular decompression | 10 (71) | 21 (70) | 4 (100) | 27 (68) | 2 (100) | 6 (86) | ||||
| Fixation | 1.000 | 1.000 | 0.508 | 1.000 | ||||||
| Lag screws | 10 (71) | 21 (70) | 3 (75) | 28 (70) | 1 (50) | 5 (71) | ||||
| Plate and screws | 4 (29) | 9 (30) | 1 (25) | 12 (30) | 1 (50) | 2 (29) | ||||
| Pass epiphysis | 5 (36) | 2 (7) | 0.025 | 1 (25) | 6 (15) | 0.513 | 0 (0) | 1.000 | 3 (43) | 0.068 |
| Good Reduction quality | 13 (93) | 27 (90) | 1.000 | 2 (50) | 38 (95) | 0.036 | 1 (50) | 0.175 | 7 (100) | 1.000 |
Bold values are statistically significant p < 0.05
*Patient number with the percentage of patient number in total patient of the column within parentheses