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Table 1 The ROM at the implanted segment and adjacent segments in flexion-extension, lateral bending and axial rotation

From: Biomechanical evaluation of cervical disc replacement with a novel prosthesis based on the physiological curvature of endplate

Segment

Flexion-extension (°)

F

P

Lateral bending (°)

F

P

Axial rotation (°)

F

P

Group 1

Group 2

Group 3

group1

group2

group3

Group 1

Group 2

Group 3

C4/5

9.32±1.41

10.49 ± 1.57

10.33 ± 1.88

0.92

0.42

12.41 ± 1.58

12.10 ± 1.43

11.85 ± 1.50

0.21

0.81

7.23±1.47

7.65±1.26

7.79±1.19

0.30

0.75

C5/6

8.83±1.51

9.68±1.73

9.55±1.73

0.46

0.64

12.67 ± 1.60

13.46 ± 2.11

13.09 ± 1.98

0.25

0.78

7.56±1.31

7.36±1.20

7.66±1.57

0.08

0.93

C6/7

8.78±1.41

10.24 ± 1.51

9.94±1.74

1.47

0.26

11.96 ± 1.53

11.74 ± 1.35

11.36 ± 1.43

0.26

0.77

7.12±1.55

7.45±1.41

7.59±1.20

0.18

0.84

  1. The ROM was expressed as mean ± standard deviation. Group 1, intact spine; group 2, CDR with the novel prosthesis; group 3, CDR with the Prestige LP prosthesis