Prosthetic device with modular stem

Details Prosthetic device with modular stem Prosthetic device with modular stem

A - Human Necessities

61

F

3/104

A61F 2/32 (2006.01) A61F 2/30 (2006.01) A61F 2/36 (2006.01) A61F 2/00 (2006.01)

Patent

CA 2029798

A modular stem type prosthesis is provided which includes a stem and an extension which are connected to one another with a slip fit interconnection that minimizes sur- face tensile forces in regions of the prosthesis adjacent the interface between the stem and the extension. Engage- ment between the stem and the extension is provided by deflectable end portions of one component of the prosthesis which are engaged in a mating deformation in the other com- ponent. The mating structures may define an interfitting ridge and groove. Micromotion between the respective parts may be prevents by a screw which may be tapered to achieve a lock fit. The extension may be of any selected length and any selected diameter in accordance with the needs of the patient.

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