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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