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. Author manuscript; available in PMC: 2019 Jan 23.
Published in final edited form as: J Biomech. 2017 Nov 16;67:9–17. doi: 10.1016/j.jbiomech.2017.11.014

Figure 5.

Figure 5

Contact stress distributions at heel strike for the intact and fractured states of both specimens obtained from DEA models generated with specimen-specific cartilage thickness. The leftmost column shows the acetabular cartilage in light gray and the Tekscan sensor surface in dark gray with the mapped contact stresses shown as indicated on the colorbar. Dark gray indicates that the Tekscan sensor registered no contact at that location under load. In the center column, the light gray shows all acetabular cartilage in the DEA models with a black line denoting the edge of the Tekscan sensor which is not shown. The rightmost column shows difference maps which are the absolute value of the Tekscan maps minus the DEA maps. Contact stress values above 8 MPa are represented in black, with a maximum contact stress value of 11.3 MPa. The presence of a fracture disrupts the peripheral contact distribution of the intact joints and appears to shift stresses anterosuperiorly and medially within the acetabulum.