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Table 4 Clinical results (bilateral vs. unilateral fusion, bilateral vs. no fusion)

From: The effects of anterior vacuum disc on surgical outcomes of degenerative versus spondylolytic spondylolisthesis: at a minimum two-year follow-up

 

Bilateral (n = 26)

Unilateral (n = 9)

No fusion (n = 7)

Bilateral vs. unilateral p - value

Bilateral vs. no fusion p - value

Preoperative ODI score

51.77 ± 12.49

49.33 ± 7.12

51.14 ± 5.54

0.901

0.594

Final ODI score

22.62 ± 9.46

29.56 ± 5.23

34.29 ± 4.33

0.050

0.004

Satisfaction, yes/no, n (%)

22/4 (84.6)

4/5 (44.4)

2/5 (28.6)

0.058

0.002

  1. Data are presented as mean ± SD unless noted otherwise. Satisfaction was based on Brodsky’s criteria. Abbreviation: ODI Oswestry Disability Index.
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