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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