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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