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Table 1 Mean translation and rotation errors obtained for each bone and scenario, by guidance method. The last column represents the final error obtained by considering the overall positioning. “HL2” stands for Microsoft HoloLens 2, and “Spacers” refers to 3D-printed spacers

From: Microsoft HoloLens 2 vs. tablet-based augmented reality and 3D printing for fronto-orbital reconstruction of craniosynostosis: a case study

Bone fragment

Scenario

Mean translation error ± std (mm)

Mean rotation error ± std (°)

Mean placement error ± std (mm)

Tablet

HL2

Spacers

Tablet

HL2

Spacers

Tablet

HL2

Spacers

SO bar

Surgical scenario

0.6 ± 0.6

0.8 ± 0.3

0.2 ± 0.1

0.8 ± 0.5

0.8 ± 0.4

1.1 ± 0.7

0.5 ± 0.3

0.6 ± 0.3

0.3 ± 0.4

SO bar

Simulation scenario

0.6 ± 0.4

0.6 ± 0.4

0.6 ± 0.4

0.4 ± 0.5

0.6 ± 0.8

0.6 ± 0.6

0.6 ± 0.4

0.6 ± 0.5

0.5 ± 0.4

Frontal bone

Simulation scenario

0.7 ± 0.3

0.6 ± 0.4

-

0.9 ± 0.6

0.9 ± 0.6

-

0.6 ± 0.4

0.6 ± 0.4

-

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3D Printing in Medicine

ISSN: 2365-6271

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