Instrument for implanting modular hip joint prosthesis with adju

Details Instrument for implanting modular hip joint prosthesis with adju Instrument for implanting modular hip joint prosthesis with adju

1990-10-31

1992-08-04

Isabella, David

Surgery

Instruments

Orthopedic instrumentation

623 23, A61F 504

Patent

active

051355299

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.

REFERENCES:
patent: 4551863 (1985-11-01), Murray
patent: 4601289 (1986-07-01), Chiarizzio et al.
patent: 4765328 (1988-08-01), Keller et al.

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