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Table 1 The general data of patients in this study

From: Is unilateral transverse process-pedicle percutaneous kyphoplasty a better choice for osteoporotic thoracolumbar fractures in the old patients?

 

Improved unilateral group

Unilateral group

Bilateral group

No. of patients

135

211

101

No. of vertebral bodies (units)

148

229

122

Sex(male/female)

28/107

65/146

25/76

Age

76.8 ± 7.5

76.7 ± 6.9

75.8 ± 7.5

Bone density (t value)

− 3.05 ± 0.57

− 3.15 ± 0.64

− 3.00 ± 0.78

Surgery duration/min

33.5 ± 10.3

22.4 ± 8.0**

35.3 ± 12.1

Intraoperative bone cement amount/ml

5.6 ± 1.3

4.2 ± 1.2**

5.5 ± 1.0

VAS

 Preoperative

7.53 ± 1.18

7.13 ± 1.11

7.62 ± 1.07

 Postoperative day 1

3.32 ± 0.84 (55.1 ± 12.2)

3.21 ± 0.64 (54.2 ± 10.5)

3.16 ± 0.84 (55.5 ± 12.3)

 Last follow-up

2.32 ± 0.77 (68.3 ± 12.0)

2.44 ± 0.85 (65.1 ± 11.2)

2.33 ± 0.54 (68.6 ± 9.8)

ODI score

 Preoperative

34.7 ± 6.0

33.8 ± 6.5

35.1 ± 5.8

 Postoperative day 1

13.6 ± 4.5 (60.1 ± 13.4)

18.6 ± 4.1 (59.3 ± 11.7)

17.7 ± 3.8 (60.5 ± 13.9)

 Last follow-up

9.6 ± 4.1 (71.2 ± 13.7)

17.1 ± 3.8 (72.4 ± 14.6)

16.8 ± 3.6 (74.1 ± 10.9)

Cobb’s Angle (Coronal)

 Preoperative

2.2 ± 2.3

6.5 ± 3.2

2.4 ± 2.3

 Postoperative day 1

1.7 ± 2.6

1.9 ± 2.5

2.1 ± 2.1

 Last follow-up

1.9 ± 2.5

2.0 ± 2.6

2.0 ± 2.0

Cobb’s Angle (Sagittal)

 Preoperative

17.6 ± 2.1

17.4 ± 2.7

17.1 ± 2.2

 Postoperative day 1

9.6 ± 2.3 (46.2 ± 7.3)

9.8 ± 3.4 (45.0 ± 14.1)

9.2 ± 2.5 (46.7 ± 8.3)

 Last follow-up

10.4 ± 2.5 (41.2 ± 8.4)

10.5 ± 3.3 (40.4 ± 13.8)

10.1 ± 2.8 (41.5 ± 11.8)

Vertebral height/mm

 Preoperative

17.3 ± 1.8

17.6 ± 2.9

17.5 ± 2.2

 Postoperative

19.3 ± 1.9 (11.7 ± 5.0)

19.2 ± 2.2 (11.8 ± 5.0)

19.5 ± 2.3 (11.6 ± 4.9)

 Last follow-up

18.6 ± 2.0 (7.3 ± 6.9)

18.4 ± 2.4 (7.0 ± 6.5)

19.2 ± 2.1 (9.7 ± 3.2)

Bone cement Leakage/ per vertebra

24 (16.2%)

65 (28.4%)**

19 (15.6%)