The Accuracy of 3D Printing Assistance in the Spinal Deformity Surgery

Table 4

Number of penetration on the convex and concave sides.

	Convex	Concave	value
Penetration	13/88	10/85	0.6563
Medial breach	7	5	0.9547
Lateral breach	1	5	0.2796
Inferior breach	5	0	0.1181