Figure 6.

Displacement distribution of crescent fragment of the five models. A: model A; B: model B; C: model C; D: model D; E: model E. The color change at the crescent fragment, indicates the displacement distribution. As shown in the figure, the color is more reddish, the crescent fragment is with the greater the displacement distribution. In C (0.043 mm), there is most red part in the five models, because the crescent fragment is not fixed. The second red part is A (0.030 mm), in which the crescent fragment is fixed with plate. The B (0.022 mm), D (0.023 mm) and E (0.018 mm), are with the similar value. They are all fixed with cannulated screw. Compared to plate, cannulated screw can withstand more stress.