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Table 1 Primary drill pedicle perforations (PDPP) and secondary screw pedicle perforations (SSPP)

From: Augmented reality-based navigation increases precision of pedicle screw insertion

Skill levelGroupPDPPSSPP
6 mm7 mm8 mm
ExpertFH0238
AR0336
p0.3210.3250.196
NoviceFH3182022
AR171015
p0.6150.0060.0130.053