Table 2.

Incidence of endplate fracture

	Total	P value
Sagittal plane
Anterior	68.0% (51/75)	0.02
Posterior	85.3% (64/75)*
Coronal plane
Left (approach side)	77.3% (58/75)	0.69
Right (non-approach side)	81.3% (61/75)
Concave side	69.4% (34/49)	0.35
Convex side	79.6% (39/49)

The prevalence of endplate fracture in the posterior area was significantly higher than that in the anterior area. By contrast, there was no significant difference in the approach and non-approach sides, and the concave and convex sides. *P < 0.05 is defined as significant