Fig. 8.

Radiographic values of the VBHP were used for polynomial predictions of the parameters ADH (a), PDH (b) and VBHA (c) at all levels of the thoracic spine. The predicted values were superimposed on anatomical data that were measured in the present study. Dotted and continuous curves indicate SD of the experimental and predicted values, respectively. Mean percent errors of the predictions larger than 10% are indicated. ADH, anterior disc height; an, anterior; ca, caudal; cr, cranial; PDH, posterior disc height; po, posterior; VBHA, vertebral body height anterior; VBHP, vertebral body height posterior.