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Towardholographic-guidedsurgery1116STATISTICALANALYSISDescriptivestatisticswereusedtorepresentthesizeofthenavigationerrorandtheoverallerrorfoundinthetight-fitandloose-fitexperimentsfortranslations(Euclideandistance)AKolmogorov-SmirnovtestwasusedtotestfornormalityAnalysisofvarianceandposthoctestswithBonferronicorrectionwereusedtodeterminewhethertheresultsoftheloose-fitIGSandloose-fitARdifferedsignificantlyandtotestfordifferencesbetweentheobserversAsignificancelevelof05wasusedTable1Absolutedifferencesinpositionandorientationbetweenthetrackedcubeandplannedcubeinthe Tight-fitIGSexperimentand Tight-fitARexperimentTight-fitIGSTight-fitARMeanerror±SD(mm)Maximumerror(mm)Meanerror±SD(mm)Maximumerror(mm)X-direction03±020803±0210Y-direction04±020805±0312Z-direction02±010603±0208EuclideanDistance06±021007±0214Meanerror±SD(°)Maximumerror(°)Meanerror±SD(°)Maximumerror(°)X-angle06±041805±0418Y-angle04±031206±0625Z-angle06±020906±0315Table2Absolutedifferenceinpositionandorientationbetween the trackedcubeandplannedcubein theLoose-fitexperimentswithoutARandwithARLoose-fitIGSLoose-fitARMeanerror±sd(mm)Maximumerror(mm)Meanerror±sd(mm)Maximumerror(mm)X-direction03±041910±0626Y-direction04±031216±0633Z-direction03±031709±0625EuclideanDistance07±042023±0536Meanerror±sd(°)Maximumerror(°)Meanerror±sd(°)Maximumerror(°)X-angle04±031807±0620Y-angle05±042309±0828Z-angle04±031112±0828
