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Table 2 Comparison of anterior-posterior diameters within each vertebra

From: More anterior bone loss in middle vertebra after contiguous two-segment cervical disc arthroplasty

Vertebra

AP diameter, mm

FU period

P

Post-operation

Early FU

Last FU

SV

SEL

14.6 ± 1.8

14.9 ± 1.6

14.9 ± 1.8

0.076

 

MVL

14.4 ± 1.5

14.5 ± 1.4

14.5 ± 1.5

0.590

 

IEL

15.9 ± 1.4

15.4 ± 1.5*

15.2 ± 1.5**

< 0.001

MV

SEL

15.8 ± 1.5

15.2 ± 1.6*

15.2 ± 1.5*

< 0.001

 

MVL

14.6 ± 1.5

14.7 ± 1.5

14.6 ± 1.5

0.822

 

IEL

16.3 ± 1.4

15.6 ± 1.5**

15.7 ± 1.5**

< 0.001

IV

SEL

16.2 ± 1.4

15.5 ± 1.4**

15.6 ± 1.5*

< 0.001

 

MVL

14.8 ± 1.4

14.9 ± 1.3

14.9 ± 1.4

0.415

 

IEL

16.3 ± 1.7

16.7 ± 1.6

16.8 ± 1.7*

0.008

  1. AP, anterior-posterior; SV, superior vertebra; MV, middle vertebra; IV, inferior vertebra; SEL, superior endplate length; MVL, middle vertebra length; IEL, inferior endplate length; FU, follow-up. *P < 0.05, compared with post-operation in pairwise comparison;** P < 0.001, compared with post-operation in pairwise comparison
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X