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Table 2 Comparison of clinical outcomes between the two groups

From: Analysis of the effect of percutaneous vertebroplasty in the treatment of thoracolumbar Kümmell’s disease with or without bone cement leakage

Parameters Leakage group Non-leakage group t/χ2 P
Follow-up time (months) 35.5±6.26 36.0±6.65 −0.087 0.734
Amount of bone cement injected (ml) 4.5±1.45 4.0±1.23 3.619 0.000
Operation time (min) 38.8±5.61 38.6±5.53 1.864 0.938
VAS scores
 Before surgery 8.0±1.41 7.8±1.42 2.696 0.362
 On the second day after surgery 3.1±0.72* 3.2±0.76* −1.494 0.719
 At the last follow-up 3.2±0.78* 3.1±0.80* 1.031 0.726
ODI scores
 Before surgery 72.2±10.89 70.6±10.03 7.693 0.265
 On the second day after surgery 25.4±5.42* 24.4±5.13* 3.537 0.654
 At the last follow-up 26.9±5.41* 25.0±5.56* 12.872 0.126
Adjacent vertebral fractures(%) 18.75 15.63 0.110 0.740
 Yes (cases) 6 5   
 No (cases) 26 27   
The recovery value of anterior edge height (mm)
 On the second day after operation 3.4±1.70 2.1±1.28 2.572 0.000
 At the last follow-up 3.1±1.56 2.0±3.47 1.956 0.000
The improvement value of Cobb angle (°)
 On the second day after operation 6.8±2.84 4.6±2.19 5.467 0.000
 At the last follow-up 6.2±5.17 4.3±2.13 4.509 0.000
  1. * Compared to before surgery, P< 0.05