Table 3 Subgroup deviation angles.

From: Augmented reality guidance improves accuracy of orthopedic drilling procedures

  

Guidance technique

  

Freehand

Proprioception

Augmented Reality

Drilling direction

Perpendicular

4.95 ± 2.58

(4.07–5.82)

5.32 ± 2.69

(4.41–6.23)

3.28 ± 1.91

(2.64–3.93)

Oblique

6.55 ± 4.42

(5.05–8.05)

8.40 ± 5.65

(6.49–10.31)

3.47 ± 2.46

(2.64–4.30)

  1. Subgroup deviation angles for each combination of guidance technique and drilling direction (mean ± SD (95% confidence interval between brackets) expressed in degrees).
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