Question

1. A company is evaluating a new insert material for a total knee replacement bearing surface. You are tasked with evaluating the tribology of the new material. Describe how the tribological factors will be different for an artificial knee material compared to articular cartilage. Assume the femoral component has a circular radius of curvature equal to 50 mm. If the expected flexion arc is 110° and the coefficient of wear is 1x109 mm/Nm what would be the expected volume of wear after 10,000 cycles be if the joint load is assumed to be 700N? What are two factors that could reduce this wear? How would wear be affected in the natural joint if all other factors are the same?

Answer 1