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Table 5 ROM (°) of each segment under different loading conditions

From: Biomechanical effect of different plate-to-disc distance on surgical and adjacent segment in anterior cervical discectomy and fusion - a finite element analysis

Load scheme

Experiment data (mean ± SD)

Current model [median (min, max)]

C4/5

C5/6

C6/7

C4/5

C5/6

C6/7

Flexion

5.3 ± 3.0

5.5 ± 2.6

3.7 ± 2.1

5.9 (4.9, 7.6)

6.0 (4.8, 7.3)

3.9 (2.6, 5.0)

Extension

4.8 ± 1.9

4.4 ± 2.8

3.4 ± 1.9

5.3 (3.8, 6.3)

5.8 (3.7, 6.6)

4.3 (3.1, 5.0)

Rotation

6.8 ± 1.3

5.0 ± 1.0

2.9 ± 0.8

6.7 (5.6, 7.4)

5.4 (4.1, 6.0)

2.9 (2.2, 3.6)

Lateral bending

9.3 ± 1.7

6.5 ± 1.5

5.4 ± 1.5

8.9 (7.9, 10.6)

6.6 (5.2, 7.6)

5.8 (4.6, 6.6)

  1. ROM Range of motion, SD Standard deviation