The news correspondents obtained a quote from the research, "Commercial software was employed to simulate the movements of flexion, abduction and internal rotation at 90 degrees of flexion to determinate the impingement between femoral neck and acetabular cup. On the other hand, the edge load effect as consequence of different acetabular component inclinations and micro-separations were analyzed by finite element analysis for both designs. In addition, this effect was validated in the hip joint simulator FIME II. The results of the new design exhibited a significant motion increment before impingement of 12.8 degrees +/- 1.3 degrees for flexion, 13.3 degrees +/- 3.1 degrees for extension, 7.8 degrees +/- 1.9 degrees for abduction and 13.1 degrees +/- 3.2 degrees for internal rotation."
According to the news reporters, the research concluded: "Moreover, the new design showed a reduction of the contact stress and stripe wear during the running-in due to the micro-separation effect."
For more information on this research see: A novel total hip resurfacing design with improved range of motion and edge-load contact stress. Materials & Design, 2014;55():690-698. Materials & Design can be contacted at:
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