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Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: 3D analysis of Osteosyntheses material using semi-automated CT segmentation: a case series of a 4 corner fusion plate

Fig. 3

The models of the four carpals fused (white) and the plate (grey) were tested in a three-dimensional environment (a). Distinguishing the screw count in each carpal from a sole anteroposterior view (b) was not feasible, but a 360° view and a dynamic examination allowed an exact attribution. To visualize the bi-cortical ply (c) a mesh was produced symbolizing the inner layer of the cortical (red). Only screws, which penetrated the red shell were distinct bi-cortical located (d). The multidirectional angle of 15° was established, if the screw lay in a cone (black) with the same defaults and in the direction of the normal vector of the plate

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