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Table 1 Basic characteristics of include cases

From: Analysis of risk factors affecting union and refracture after combined surgery for congenital pseudarthrosis of the tibia: a retrospective study of 255 cases

Variables

N/

Mean ± SD

Age at first Fracture

 < 1 y

122 (47.8%)

0.32 ± 0.29

 1–3 y

92 (36.1%)

1.57 ± 0.49

 ≥ 3y

41 (16.1%)

4.87 ± 1.36

Age at index surgery

 < 1 y

29 (11.4%)

0.59 ± 0.24

 1–3 y

105 (41.1%)

1.83 ± 0.50

 ≥ 3y

121 (47.5%)

6.14 ± 3.00

Follow-up time

4.56 ± 1.71 (2–8y)

BMI

16.50 ± 2.63

Side

 Left

127 (49.8%)

 Right

128 (50.2%)

Gender

 Male

156 (61.2%)

 Female

99 (38.8%)

Surgical method

 Non-cross union

29 (11.4%)

 Cross union

226 (88.6%)

CPT location

 Proximal 1/3

6 (2.4%)

 Middle 1/3

67 (26.2%)

 Distal 1/3

182 (71.4%)

Presence of NF-1

 Yes

180 (70.6%)

 No

75 (29.4%)

Presence of CPF

 Yes

163 (63.9%)

 No

92 (36.1%)

Refracture

 Yes

34 (13.3%)

 No

221 (86.7%)

Nonunion

 Yes

19 (7.5%)

 No

236 (92.5%)

  1. BMI body mass index, CPT congenital pseudarthrosis of tibia, NF-1 neurofibromatosis1, CPF congenital pseudarthrosis of fibula