Glenoid component with improved fixation stability
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United States of America Patent
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Oct 25, 2016
Grant Date -
Sep 27, 2007
app pub date -
Mar 21, 2007
filing date -
Mar 21, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A glenoid component is provided to reduce glenoid loosening when implanted in orthopedic joint replacement/reconstruction, such for a shoulder. The glenoid component can include pegs or a keel and articulating surface geometry that uses complex, non-spherical geometry to recreate a level of constraint that is adequate, but not excessive, to thereby mitigate loosening of the glenoid component after implantation. In addition, some embodiments provide that peak stresses both within cement and at an interface of the cement and a supportive component can be reduced. Further, geometry of the pegs can allow stresses to be evenly applied to a cement mantle formed in the supportive component. Finally, the pegs can be configured to desired lengths in order to avoid placement in areas of the supportive component, for example, that have insufficient bone stock.
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