Table 3 Radiographic assessment of the aorta.

From: Radiologic and clinical outcomes of combining pedicle subtraction osteotomy and Smith–Peterson osteotomy in correcting severe ankylosing spondylitis kyphosis

Parameters

Preoperation

Postoperation

P value

Aortic traversing length (mm)

209.8 ± 29.2

245.6 ± 31.8*

< 0.001

Aortic diameter at the PSO level (mm)

18.9 ± 2.4

16.4 ± 2.3*

< 0.001

Aortic diameter at the SPO level (mm)

15.8 ± 1.6

15.3 ± 1.7

0.173

  1. *Compared with preoperative values, P < 0.001.
  2. PSO pedicle subtraction osteotomy, SPO Smith–Petersen osteotomy.
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