Research Article
Comparison of Radiographic Reconstruction and Clinical Improvement between Artificial Cervical Disc Replacement and Anterior Cervical Discectomy and Fusion
Figure 1
Radiographic measurement of the cervical sagittal alignment parameters. (a) cSVA: the distance between the plumb line from the center of C2 and the superior posterior corner of C7; CL: the angle between C2 (the inferior endplate) and C7 (the inferior endplate); (b) T1s: the angle between T1 (the superior endplate) and a horizontal line; ISH: average of anterior disc height (ADH) and posterior disc height (PDH). Abbreviations: cSVA, cervical sagittal vertical axis; CL, cervical lordosis; T1s, T1 slope; ISH, intervertebral space height; ADH, anterior disc height; and PDH, posterior disc height.
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