Accuracy Assessment of Using Rapid Prototyping Drill Templates for Atlantoaxial Screw Placement: A Cadaver Study

Table 2

Comparison of operating and fluoroscopy times between the conventional method and RPDT navigation groups (independent-sample -tests).

	Operating time (min)		Fluoroscopy times
	Conventional method	RPDT navigation	Conventional method	RPDT navigation
Mean ± SD	4.5 ± 1.39	2.3 ± 0.76	3.1 ± 1.01	0.4 ± 0.8
Sample size	44	48	44	48
value	9.751		13.963
value	<0.001		<0.001