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. 2012 Feb 14;21(8):1648–1659. doi: 10.1007/s00586-012-2180-8

Fig. 2.

Fig. 2

Evaluation of sagittal alignment included measurements of discal, local, C3–C7 and C1–C7 sagittal angles (SA). Anterior and posterior disc height were also calculated on neutral lateral view using a ratio between discal and upper vertebral body heights (a/b and c/d, respectively). SA sagittal angle