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The
photograph shows the components of a full knee-joint replacement. The Tibial
component has a ultrahigh molecular-weight polyethylene cap to provide
a low friction surface interaction with the Condyolr replacement.
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To
fix a replacement in the body, either bone cement or a porous surface on
the prosthetic into which bone will grow can be used.
· The
device shown uses a sintered, porous surface coating. This can only be
used with a healthy bone end, and the time for bone growth into the porous
coating requires a longer recovery period. Coating the porous region with
hydroxyapatite van facilitate local bone growth. |
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