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Table 1 Pooled data of the spatial difference between the preoperative virtually planned and postoperative actually inserted screws on phantom models

From: Does a novel 3D printed individualized guiding template based on cutaneous fiducial markers contribute to accurate percutaneous insertion of pelvic screws? A preliminary phantom and cadaver study

Phase 1: phantom models

MLD bony entry point(mm)

MLD screw tip (mm)

MAD

(deg)

Pooled 5 attempts on suprapubic screws

3.32 ± 0.30

3.56 ± 0.86

1.34 ± 0.54

Pooled 5 attempts on sacroiliac screws

2.34 ± 0.35

2.68 ± 0.48

1.16 ± 0.27

Pooled 10 attempts of screw insertion

2.83 ± 0.60

3.12 ± 0.81

1.25 ± 0.41

  1. Key: MLD – mean longitudinal deviation; MAD – mean angular deviation