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Table 2 Relative Disc Height and Segmental Lordosis

From: Distinct fusion intersegmental parameters regarding local sagittal balance provide similar clinical outcomes: a comparative study of minimally invasive versus open transforaminal lumbar interbody fusion

 

Open (n = 50)

MIS (n = 38)

P

Anterior Disc Height

 Preop

0.51 Â± 0.12

0.49 Â± 0.12

0.355

 6 months postop

0.58 Â± 0.11*

0.51 Â± 0.10

0.002

 Difference

0.07 Â± 0.12

0.02 Â± 0.11

0.050

 Difference ratio (%)

18.54 Â± 31.59

6.71 Â± 22.28

0.053

Posterior Disc Height

 Preop

0.25 Â± 0.06

0.25 Â± 0.07

0.982

 6 months postop

0.31 Â± 0.08*

0.32 Â± 0.10*

0.717

 Difference

0.06 Â± 0.09

0.07 Â± 0.09

0.727

 Difference ratio (%)

34.44 Â± 47.20

34.64 Â± 42.68

0.984

Mean Disc Height

 Preop

0.38 Â± 0.8

0.37 Â± 0.08

0.373

 6 months postop

0.45 Â± 0.08*

0.41 Â± 0.09*

0.067

 Difference

0.07 Â± 0.09

0.05 Â± 0.08

0.222

 Difference ratio (%)

21.30 Â± 32.73

14.35 Â± 20.88

0.231

Segmental Lordosis (°)

 Preop

9.05 Â± 5.63

7.36 Â± 3.07

0.092

 6 months postop

12.34 Â± 4.74*

10.24 Â± 4.79*

0.043

 Difference

3.29 Â± 5.71

2.88 Â± 5.48

0.733

  1. ∗is significant differences in p-value(p < 0.05) between the first measurement and the second measurement