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Table 1 Drilling parameters comparing freehand and guided surgery K-wire placement compared to the pre-operative plan for both wires (superior and inferior) and pooled by group

From: Computer-assisted subcapital correction osteotomy in slipped capital femoral epiphysis using individualized drill templates

Drilling Parameters

Wire

Freehand

Mean ± STD

Guided

Mean ± STD

p value

Wire Entry Point (mm)

Superior

5.7 ± 3.2

1.2 ± 0.8

< 0.001

Inferior

5.9 ± 3.3

1.6 ± 1.0

< 0.001

Pooled

5.8 ± 3.3

1.4 ± 0.9

< 0.001

Wire Angulation (degrees)

Superior

6.6 ± 4.3

2.4 ± 1.5

< 0.001

Inferior

6.0 ± 4.5

2.5 ± 1.3

< 0.001

Pooled

6.3 ± 4.4

2.5 ± 1.4

< 0.001

  1. Statistically significant p values (p < 0.05) are in bold. Pooled data include values reported for both views. Compared to freehand surgeries, guided surgeries were statistically significantly more accurate in both drilling parameters
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3D Printing in Medicine

ISSN: 2365-6271

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