Table 2 Comparison of delayed union / non-delayed union
Demographic date | Delayed union | Non-delayed union | t/\({x}^{2}\) | P |
|---|---|---|---|---|
Sex | ||||
Male | 18 (26.32) | 72 (73.68) | 0.784 | 0.376 |
Female | 4 (17.86) | 9 (82.14) | ||
Type of external fixation | ||||
monolateral | 19 (20.65) | 73 (79.35) | 0.256 | 0.613 |
circular | 3 (27.27) | 8 (72.73) | ||
Soft tissue defect | ||||
yes | 6 (35.29) | 11 (64.71) | 2.354 | 0.125 |
no | 16 (18.60) | 70 (81.40) | ||
Level of bone transport | ||||
Single | 16 (20.00) | 64 (80.00) | 0.394 | 0.530 |
Double | 6 (26.09) | 17 (73.91) | ||
Location of bone defect | ||||
proximal 1/3 | 1 (5.26) | 18 (94.74) | 10.023 | 0.007 |
middle 1/3 | 5 (12.82) | 34 (87.18) | ||
distal 1/3 | 16 (35.56) | 29 (64.44) | ||
Age | 42.27 ± 14.66 | 36.54 ± 13.10 |  − 1.773 | 0.079 |
Previous operation time | 4.00 ± 1.45 | 3.54 ± 1.11 |  − 1.602 | 0.112 |
Size of bone defect | 8.46 ± 2.09 | 6.04 ± 1.89 |  − 5.188 |  < 0.001 |
DT | 76.77 ± 12.72 | 71.09 ± 13.09 |  − 1.818 | 0.072 |
EFT | 318.72 ± 67.54 | 286.40 ± 52.94 |  − 2.389 | 0.003 |
EFI | 59.72 ± 9.28 | 51.60 ± 8.86 |  − 3.772 |  < 0.001 |