After the fracture of the baseplate, the gaps and relative displacements between the pieces increased significantly. Fig. 7a
shows the top side of the tibial joint with linear displacements in the lateral-medial direction of approximately 8.0 mm, and
5.5 mm in the front-rear direction. Fig. 7b shows the inferior side of the assembly with the position of the fracture in the
medial region of the baseplate and rotation of the insert.
The relative displacements between the pieces allowed an increase of the bending moment in the medial direction, the
fracture location in the tibial base.