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. 2022 Sep 28;37:61–68. doi: 10.1016/j.jot.2022.07.005

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© 2022 The Authors

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

PMC Copyright notice

Average ROM of C_2-3, C_3-4, C_4-5, C_2-5 intervertebral space. a: flexion/extension; a1 C_2-3 flexion/extension; a2: C_3-4 flexion/extension; a3: C_4-5 flexion/extension; a4: C_2-5 flexion/extension. b: lateral bending; b1 C_2-3 lateral bending; b2: C_3-4 lateral bending; b3: C_4-5 lateral bending; b4: C_2-5 lateral bending. c: axial rotation; c1 C_2-3 axial rotation; c2: C_3-4 axial rotation; c3: C_4-5 axial rotation; c4: C_2-5 axial rotation. One asterisk means that there is statistically significant difference and p < 0.05. Two asterisks mean that there is statistically significant difference and p < 0.01.