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Table 3 Correlations between the follow-up SVA and the pre-/postoperative parameters

From: Preoperative prediction of sagittal imbalance in kyphosis secondary to ankylosing spondylitis after one-level three-column osteotomy

Parameters

Coefficient, r

P value

Preoperative GK

0.124

0.367

Preoperative LL

0.281

0.038*

Preoperative PT

0.392

0.003*

Preoperative PI

0.233

0.087

Preoperative SS

-0.078

0.574

Preoperative PI-LL

0.437

0.001*

Preoperative TPA

0.454

 < 0.001*

Preoperative SVA

0.386

0.004*

Postoperative GK

0.039

0.781

Postoperative LL

0.389

0.003*

Postoperative PT

0.437

0.001*

Postoperative PI

0.218

0.111

Postoperative SS

-0.159

0.245

Postoperative PI-LL

0.661

 < 0.001*

Postoperative TPA

0.669

 < 0.001*

Postoperative SVA

0.834

 < 0.001*

  1. GK Global kyphosis, LL Lumbar lordosis, PT Pelvic tilt, PI Pelvic incidence, SS Sacral slope, PI-LL PI minus LL value, TPA T1 pelvic angle, SVA Sagittal vertical axis
  2. * Indicated that the correlation was statistically significant (P < 0.05)
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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