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Table 3 Comparison of radiographic sagittal alignment parameters

From: Radiographic and clinical evidence: osteoarthritic knee can change surgical result for lumbar degenerative disease patient undergone surgery for 3-year follow-up: a retrospective comparative clinical study

 

Group I

Group II

Comparison

 

Value, mean±S.D.

p Preop Versus PO#1 M

P PO#1 M Versus Ultimate PO

Value, mean±S.D.

p Preop Versus PO#1 M

P PO#1 M Versus Ultimate PO

Pa Group 1 Versus Group 2

CL(°)

 Preop

−14.3 ± 6.8

  

−12.9 ± 10.8

  

0.451

 PO#1 M

−9.1 ± 7.6

0.043*

 

−9.3 ± 11.0

0.139

 

0.584

 Ultimate PO

−9.0 ± 7.8

 

0.744

−10.8 ± 9.7

 

0.326

0.244

 Ultimate PO-Preop

5.3 ± 4.7

  

2.1 ± 1.8

  

0.159

 Ultimate PO-PO#1 M

0.1 ± 1.3

  

−1.5 ± 0.9

  

0.665

TK(°)

 Preop

19.5 ± 12.3

  

20.7 ± 11.5

  

0.429

 PO#1 M

23.1 ± 9.7

0.122

 

21.3 ± 11.4

0.774

 

0.325

 Ultimate PO

24.8 ± 10.3

 

0.395

20.9 ± 13.6

 

0.620

0.174

 Ultimate PO-Preop

5.3 ± 4.2

  

0.2 ± 8.52

  

0.203

 Ultimate PO-PO#1 M

1.7 ± 0.5

  

−0.4 ± 1.2

  

0.599

TLK(°)

 Preop

3.7 ± 2.1

  

4.3 ± 1.8

  

0.578

 PO#1 M

0.8 ± 1.5

0.029*

 

1.9 ± 3.3

0.021*

 

0.438

 Ultimate PO

1.2 ± 0.9

 

0.182

3.8 ± 5.6

 

0.160

0.306

 Ultimate PO -Preop

−2.5 ± 1.1

  

−0.5 ± 1.6

  

0.652

 Ultimate PO-PO#1 M

0.4 ± 0.9

  

1.9 ± 1.2

  

0.744

LL(°)

 Preop

−31.1± 11.3

  

−29.8 ± 10.2

  

0.437

 PO#1 M

−44.8 ± 8.6

< 0.001*

 

−42.3 ± 9.3

< 0.001*

 

0.521

 Ultimate PO

−43.4± 10.2

 

0.782

−35.9 ± 9.2

 

0.041*

0.015*

 Ultimate PO -Preop

−12.3 ± 7.4

  

−6.1 ± 9.1

  

0.031*

 Ultimate PO-PO#1 M

1.4 ± 1.3

  

6.4 ± 3.2

  

0.042*

PT(°)

 Preop

26.8 ± 11.6

  

24.7 ± 8.4

  

0.449

 PO#1 M

18.5 ± 10.7

< 0.001*

 

20.5 ± 11.2

0.021*

 

0.332

 Ultimate PO

19.1 ± 7.3

 

0.861

24.3 ± 10.3

 

0.019*

0.185

 Ultimate PO-Preop

−7.7 ± 5.3

  

−5.4 ± 3.8

  

0.223

Ultimate PO-PO#1 M

0.6 ± 0.3

  

−1.2 ± 2.1

  

0.095

  1. *Statistically significant if P < 0.05. aStudent t test
  2. Preop Preoperative, PO#1 M Postoperative 1 month, Ultimate PO The ultimate follow-up, CL Cervical lordosis, TK Thoracic kyphosis, TLK Thoracolumbar kyphosis, LL Lumbar lordosis, PT Pelvic tilt