SCS of the fourth metatarsal.

Fig. 1a SCS of the fourth metatarsal of the wrestler. Fig. 1b SCS of the fourth metatarsal of the volleyball player. The application of Mimics software leads to the 3D model of the fourth metatarsal. The 3D model is then reconstructed and saved as text file by “point cloud” process (the menu in the Mimics). Applying Eq. (3), SCS is conducted and then Geomagic Studio is used to wrap or smooth shade the processed point cloud data. Next, save the 3D model as a STL (standard template library) file. Last, input the standardized 3D model of the fourth metatarsal into Mimics. The left figure is a comparison of bone before and after using SCS, the middle figure is the posture of bone in body coordinate system before using SCS while the right one is the posture of bone in body coordinate system after using SCS. When the coordinate of the equipment is translated to the bone's COM, two different postures of the two subjects' fourth metatarsal can be spotted. But after using SCS, the bone's body coordinate axes are translated into the bone's PAIs, where the postures can be unified in the coordinate system.