Implantable prosthesis
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United States of America Patent
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Jun 29, 1993
Grant Date -
N/A
app pub date -
Sep 13, 1991
filing date -
Sep 13, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The shaft surface of a cementlessly implantable prosthesis is provided with a large number of holes which are formed as blind or pocket holes. Each hole is surrounded by a bulb in the form of a crater edge. The bony tissue that grows into the holes and around the bulbs ensures a firm seating of the prosthesis over a long time. The holes are preferably oriented in such a way that the bone pegs that extend into them can take up a desired load which may be either a compressive or a tensile force. A tensile force exerted on the bone will stimulate its growth.
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