Method and apparatus for extracting a cement mantle from a bone recess
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United States of America Patent
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-
Jun 29, 1993
Issued Date -
N/A
app pub date -
Apr 10, 1992
filing date -
Apr 17, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for removing a pre-placed prosthetic appliance anchored in place in a bone recess by a cement mantle and conditioning the recess for receipt of a replacement appliance. The preplaced appliance is first pulled from the mantle of hardened cement holding it within the recess, thus leaving a cavity within the mantle. A screw threaded post having nuts threadably engaged therewith at longitudinally spaced locations is then anchored within the cavity with a new mass of cement. Thereafter, the post is threadably disengaged from the nuts, leaving the nuts in place within the new mass of cement. A pulling tool is then successively engaged with the nuts and tensioned to incrementally remove the mantle from the recess.
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