Mobile bearing total joint replacement
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United States of America Patent
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-
Nov 4, 1997
Grant Date -
N/A
app pub date -
Mar 13, 1995
filing date -
Mar 13, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A prosthetic component is provided for a condylar joint. The prosthetic component includes a platform having a bearing surface and a pair of side walls. The side walls include a pair of concave surfaces which face one another and define arcs of the same right circular cylinder. The prosthetic component also includes a plastic bearing having a bearing surface slidably engaged with the bearing surface of the platform. The bearing also includes thrust surfaces defining arcs of two right circular cylinders having radii less than the radius of the side wall surfaces of the platform. The thrust surfaces are spaced from one another to permit only limited sliding movement of the bearing in medial to lateral directions, but greater sliding movement in anterior to posterior directions.
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