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Table 2 Clinical and Radiologic Parameters after PKP

From: The influence of diverse bone cement distribution patterns for metastatic vertebral lesions after bilateral percutaneous kyphoplasty

 

CF group

SP group

p

VAS (score)

 Preoperative

6.4 ± 1.8

6.3 ± 2.0

0.78

 3 days after PKP

2.8 ± 1.0*

3.7 ± 1.5*

0.01&

 1 month after PKP

2.3 ± 0.6*

2.8 ± 0.9*

0.02&

 3 months after PKP

3.1 ± 1.1*

3.0 ± 1.3*

0.75

 1 year after PKP

3.6 ± 1.1*

3.7 ± 1.0*

0.92

ODI (score)

 Preoperative

71.2 ± 6.8

71.8 ± 6.3

0.74

 3 days after PKP

30.6 ± 4.2*

31.6 ± 4.8*

0.42

 1 month after PKP

30.5 ± 3.9*

31.0 ± 3.8*

0.62

 3 months after PKP

31.2 ± 3.6*

30.7 ± 3.4*

0.57

 1 year after PKP

30.8 ± 3.3*

31.0 ± 3.3*

0.83

Anterior-VBH variation(%)

 Preoperative

61.8 ± 5.9

60.9 ± 7.4

0.61

 3 days after PKP

69.0 ± 6.5*

70.4 ± 7.3*

0.45

 1 month after PKP

68.4 ± 6.4*

70.5 ± 6.7*

0.25

 3 months after PKP

68.6 ± 6.3*

69.0 ± 5.9*

0.83

 1 year after PKP

68.0 ± 6.1*

68.4 ± 6.4*

0.85

Middle-VBH variation(%)

 Preoperative

61.0 ± 5.6

60.6 ± 6.9

0.81

 3 days after PKP

69.7 ± 5.9*

70.3 ± 7.1*

0.72

 1 month after PKP

68.8 ± 5.7*

69.6 ± 7.0*

0.62

 3 months after PKP

67.9 ± 5.6*

68.1 ± 6.2*

0.91

 1 year after PKP

67.1 ± 5.7*

67.5 ± 6.1*

0.81

QoL(score)

 Preoperative

89.0 ± 16.5

93.7 ± 11.8

0.23

 1 year after PKP

96.3 ± 18.5*

97.6 ± 19.2*

0.80

  1. p: Analyzed by Mann–Whitney U test, the CF group compared with the SP group and Significant difference at p < 0.05
  2. CF Confluent, SP Separated, PKP Percutaneous kyphoplasty, VAS Visual analog scale, ODI Oswestry disability index, VBH Vertebral body height, QoL Quality of life
  3. *Significant difference at p < 0.05 compared with preoperation