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Table 2 Per operative features of patients with tibia bone gaps distracted by a monotube fixator

From: Distraction by a monotube fixator to achieve limb lengthening: predictive factors for tibia trauma

Features Frequency (%) Chi-square X 2 Significant level (p value)
Preoperative Packed Cell Volume (%) 34.1 ± 6.5 27.00 0.001
< 30.0 10.0 (27.8)   
≥ 30.0 26.0 (72.2)   
Tibia segment   7.20 0.027
Diaphyseal 25.0 (69.4)   
Metaphyseal/diaphyseal 11.0 (31.6)   
Number of Operation performed 1.7 ± 0.8 8.80 0.012
  One 18.0 (50.0)   
  Two 8.0 (22.2)   
  Three 10.0 (27.8)   
Bone gap (cm) 10.1 ± 4.1 4.41 0.049
  5.0-9.9 20.0 (55.6)   
  10.0-14.9 14.0 (38.9)   
  20-24.9 2.0 (5.6)   
Anesthesia type   23.04 0.000
  Spinal 30.0 (83.3)   
  General Anesthesia 6.0 (16.7)   
Intra Operative Blood Loss (ml) 403.9 ± 150.7 18.9 0.042
  ≤ 499.0 26.0 (72.2)   
  ≥ 500.0 10.0 (27.8)   
Number of blood pints transfused 2.0 ± 0.7 14.00 0.001
  One 4.0 (11.1)   
  Two 6.0 (16.7)   
  Three 4.0 (11.1)   
Co-morbidity   0.046 0.829
Head injury 2.0 (5.6)   
Diabetic mellitus 2.0 (5.6)   
Obesity 4.0 (11.1)