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Table 6 Comparison between patients with ΔSKA < 10° and ΔSKA ≥10°

From: Correction loss following short-segment posterior fixation for traumatic thoracolumbar burst fractures related to endplate and intervertebral disc destruction

 

ΔSKA < 10° (n = 26)

ΔSKA ≥10° (n = 22)

P-value

Preoperative SKA (degrees)

11.0 (10.1), 6.9, 15.1

12.2 (13.2), 6.4, 18.1

0.716**

Preoperative AVBHR (%)

72.0 (15.3), 65.8, 78.2

61.5 (15.8), 54.5, 68.5

0.024**

ΔSKA (degrees)

4.6 (3.8), 1.1, 8.2

17.2 (12.7), 13.4, 21.1

< 0.001*

ΔAVBHR (%)

4.2 (4.7), 2.3, 6.1

16.1 (12.7), 10.5, 21.8

< 0.001*

Age, years

30.3 (14.4), 24.5, 36.1

40.5 (15.3), 33.8, 47.3

0.012*

Sex (male/female), n

12/14

15/7

0.125a

Fracture level (T12, L1/L2–4), n

15/11

12/10

0.827a

AO classification, n

 B1/A3, A4, B2

9/17

2/20

0.036a

LSC score, n

  < 7 / ≥7

17/9

11/11

0.281a

Vertebroplasty, n

11

6

0.278a

Posterior decompression, n

3

4

0.687 b

Implant removal, n

21

17

0.521b

Cranial TIDL, n

 Grades 0–2/3

20/6

8/14

0.004a

Residual endplate deformity, n

8

13

0.080b

Severe back pain, n

2

9

0.006b

  1. Continuous data are expressed as mean (SD), 95% confident intervals. P-values are calculated by Mann-Whitney test*, t-test**, chi-square testa, and Fisher’s exact testb
  2. SKA segmental kyphotic angle, AVBHR anterior vertebral body height ratio, LSC load sharing classification, TIDL traumatic intervertebral disc lesion