Instrument for implanting modular hip joint prosthesis with adjustable anteversion and method of using said instrument
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United States of America Patent
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-
Aug 4, 1992
Issued Date -
N/A
app pub date -
Oct 31, 1990
filing date -
Nov 3, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a modular hip prosthesis, and instrumentation for implanting the same, which has provision for varying the angulation between the stem portion and the trochanteral module portion by provision of connection means between the neck and stem which can be positioned or attached together in a variety of rotational positions. Variation of the angulation or anteversion is made possible in accordance with the present invention by virtue of the fact that the axis of the connection portion of the stem and neck is angularly offset from the axis of the body of the stem and neck, respectively. A further aspect of this invention is the provision of instrumention for formation of a cavity for implantation of a prosthesis of this invention which is provided with indication means for indicating to the surgeon the optimum angle for assembly of the prosthesis of invention for implantation into a particular proximal femur.
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Family
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