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Table 1 Baseline characteristics of patients

From: Risk factors of transport gap bending deformity in the treatment of critical-size bone defect after bone transport

Factor

TGBD

Not TGBD

t / χ2

P value

Male (%)

18(81.8)

91(58.3)

0.740

0.390

Age, mean ± SD (years)

45.58 ± 6.62

38.05 ± 7.61

3.045

 < 0.001

BMI (%)

  

4.315

0.038

 < 25 kg/m2

7(31.8)

36(23)

  

 > 25 kg/m2

15(68.1)

120(76.9)

  

Location of defects (%)

  

4.233

0.040

 Femur

16(76.1)

11(7)

  

 Tibia

6(23.8)

145(92.9)

  

Type (%)

  

0.201

0.654

 single level

12(54.5)

82(52.5)

  

 double level

10(45.4)

74(47.4)

  

Diabetes yes (%)

9(40.9)

58(37.1)

4.813

0.028

Hypertension yes (%)

4(18.1)

39(25)

0.868

0.351

Osteoporosis yes (%)

16(72.7)

49(31.4)

5.064

0.024

Glucocorticoid intake yes (%)

12(54.5)

36(23)

8.176

0.004

Duration of infection, mean ± SD (month)

25 ± 8.02

23.61 ± 7.08

0.818

0.014

DS, mean ± SD (cm)

6.11 ± 1.33

6.23 ± 1.30

0.940

0.340

BUT, mean ± SD (month)

8.6 ± 0.50

7.99 ± 0.58

2.752

 < 0.001

EFT, mean ± SD (month)

9.51 ± 0.38

8.73 ± 0.65

3.668

 < 0.001

EFI, mean ± SD (month/cm)

1.99 ± 0.28

1.58 ± 0.40

2.912

 < 0.001

Follow-up time (months)

28.17 ± 4.29

28.64 ± 3.51

0.681

0.462

  1. TGBD transport gap bending deformity, BMI body mass index, BUT bone union time, DS defect size, EFT external fixation time, EFI external fixation index