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Table 4 Comparison of patients’ sagittal balance between the two groups

From: Retrospective comparison of cortical bone trajectory and pedicle screw in lumbar fusion for patients over 80, including sagittal balance: a single-center study

 

PLIF c CBT

(n = 44)

PLIF c PS

(n = 24)

P-value

Pelvic tilt (°)

Pre-op

24.4 ± 9.9

23.1 ± 9.3

0.605

6-month f/u

23.0 ± 8.8

20.2 ± 8.0

0.201

1-year f/u

23.2 ± 8.5

22.3 ± 9.1

0.659

Pelvic incidence (°)

Pre-op

55.7 ± 13.6

53.9 ± 13.6

0.590

6-month f/u

54.4 ± 11.8

49.8 ± 22.4

0.274

1-year f/u

55.3 ± 12.9

53.6 ± 12.2

0.592

Sacral slope (°)

Pre-op

31.3 ± 11.1

30.7 ± 12.0

0.841

6-month f/u

31.4 ± 10.0

29.6 ± 18.5

0.604

1-year f/u

32.1 ± 10.3

31.3 ± 13.4

0.797

PI-LL mismatch (°)

Pre-op

16.0 ± 13.0

15.7 ± 11.4

0.923

6-month f/u

14.0 ± 12.1

11.2 ± 8.3

0.311

1-year f/u

15.4 ± 12.5

12.8 ± 11.8

0.395

  1. Data are presented as mean ± standard deviation
  2. PLIF c CBT Posterior lumbar interbody fusion with cortical bone trajectory, PLIF c PS Posterior lumbar interbody fusion with pedicle screw, PI-LL Pelvic incidence-lumbar lordosis, Pre-op Pre-operative, f/u follow-up
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BMC Geriatrics

ISSN: 1471-2318

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