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. 2014 May 24;15:175. doi: 10.1186/1471-2474-15-175

Table 2.

Unexpected angular deformity after varization and derotation of the model according to inclination of the cutting plane

Varization (angle α)   Derotation
10° 20° 30° 40° 50° 60°
5°
 3D angle
 0.9
 1.7
 2.6
 3.4
 4.2
 5.0
Valgus
 0.1
 0.3
 0.7
 1.2
 1.8
 2.5
Extension
 0.9
 1.7
 2.5
 3.2
 3.8
 4.3
10°
 3D angle
 1.7
 3.5
 5.2
 6.8
 8.4
 10.0
Valgus
 0.1
 0.6
 1.3
 2.3
 3.5
 5.0
Extension
 1.8
 3.5
 5.0
 6.5
 7.7
 8.7
15°
 3D angle
 2.6
 5.2
 7.7
 10.2
 12.6
 14.9
Valgus
 0.2
 0.9
 1.9
 3.4
 5.2
 7.4
Extension
 2.7
 5.2
 7.6
 9.8
 11.6
 13.1
20°
 3D angle
 3.4
 6.8
 10.2
 13.4
 16.6
 19.7
Valgus
 0.3
 1.1
 2.5
 4.4
 6.8
 9.7
Extension
 3.6
 7.1
 10.3
 13.2
 15.6
 17.5
25°
 3D angle
 4.2
 8.4
 12.6
 16.6
 20.6
 24.4
Valgus
 0.3
 1.3
 3.0
 5.3
 8.3
 11.9
Extension
 4.6
 9.1
 13.1
 16.7
 19.7
 22.0
30°
 3D angle
 5.0
 10.0
 14.9
 19.7
 24.4
 29.0
Valgus
 0.4
 1.5
 3.4
 6.1
 9.6
 13.9
Extension
 5.7
 11.2
 16.1
 20.4
 23.9
 26.6
35°
 3D angle
 5.7
 11.4
 17.1
 22.6
 28.1
 33.3
Valgus
 0.4
 1.7
 3.8
 6.8
 10.8
 15.7
Extension
 6.9
 13.5
 19.3
 24.2
 28.2
 31.2
40°
 3D angle
 6.4
 12.8
 19.2
 25.4
 31.5
 37.5
Valgus
 0.4
 1.7
 4.0
 7.3
 11.7
 17.2
Extension
 8.3
 16.0
 22.8
 28.3
 32.7
 36.0
45°
 3D angle
 7.1
 14.1
 21.1
 28.0
 34.8
 41.4
Valgus
 0.4
 1.8
 4.1
 7.5
 12.3
 18.4
Extension
 9.9
 18.9
 26.6
 32.7
 37.5
 40.9
50°
 3D angle
 7.7
 15.3
 22.9
 30.4
 37.8
 45.0
Valgus
 0.4
 1.8
 4.1
 7.6
 12.5
 19.2
Extension
 11.7
 22.2
 30.8
 37.5
 42.4
 45.9
55°
 3D angle
 8.2
 16.4
 24.5
 32.5
 40.5
 48.4
Valgus
 0.4
 1.7
 4.0
 7.4
 12.4
 19.5
Extension
 13.9
 26.0
 35.5
 42.6
 47.6
 51.0
60° 3D angle
 8.7
 17.3
 25.9
 34.5
 42.9
 51.3
Valgus
 0.4
 1.6
 3.7
 7.0
 11.9
 19.1
Extension 16.7 30.6 40.9 48.1 53.0 56.3

3D angle: angle between the axes of the proximal fragment before and after derotation.