Table 1.

Average (Standard deviation (SD)) absolute translation and rotation errors of the CT- and sCT-based saw guides placed by the six observers. The p-value was calculated with a rANOVA on the between subjects differences of each parameter, with p < 0.025 being significantly different

Saw guide type	Translation: mm (SD)					Rotation: degrees (SD)
	∆x	∆y	∆z	∆T average	∆T max diff	ϕx	ϕy	ϕz	∆R average	∆R max diff
CT-based	0.8 (±1.1)	0.4 (±0.6)	2.1 (±2.3)	2.4 (±2.4)	4.5 (±3.4)	0.6 (±0.7)	0.5 (±0.6)	3.5 (±4.8)	3.8 (±4.8)	6.9 (±6.8)
sCT-based	1.0 (±1.3)	0.5 (±0.6)	2.3 (±2.4)	2.8 (±2.5)	4.5 (±2.8)	0.7 (±0.6)	0.8 (±0.7)	4.6 (±6.0)	4.9 (±6.0)	7.0 (±6.8)
p-value	.892	.687	.752	.284	–	.245	.167	.227	.216	–