Table 2 Average errors ∆T and ∆R (SD) of CT- and sCT-based saw guides found per observer

∆T CT

3.9 (±3.5)

1.8 (±1.2)

1.1 (±1.0)

2.4 (±2.6)

2.9 (±2.9)

2.5 (±1.5)

∆T sCT

3.8 (±3.1)

2.1 (±1.9)

1.8 (±1.4)

3.4 (±3.1)

3.0 (±2.3)

2.8 (±2.2)

∆R CT

4.0 (±6.9)

3.6 (±3.9)

2.4 (±2.7)

4.4 (±6.1)

4.6 (±4.5)

3.4 (±2.8)

∆R sCT

6.0 (±6.8)

4.5 (±6.2)

3.8 (±4.0)

4.6 (±5.6)

5.4 (±7.0)

5.1 (±5.9)