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Why does the cupping of the femoral component change from distal to posterior points?

April 26, 2017component cupping distal Femoral Points Posterior

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Why does the cupping of the femoral component change from distal to posterior points?

1 Answer

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The slight distal cupping ensures better load distribution on the flat polyethylene bearing surface. By implanting the femoral component in an inclined position the more pronounced posterior cupping prevents undesirable edge loading of the polyethylene insert.