Endoprosthetic knee joint

Details Endoprosthetic knee joint Endoprosthetic knee joint

1979-05-09

1981-03-24

Crowder, Clifford D.

Surgery

Truss

Pad

128 92C, A61F 103

Patent

active

042571286

ABSTRACT:
An endoprosthetic knee joint device has femoral and tibial components respectively adapted for connection to the femur and tibia, and respective bearing surfaces for mutual articulatory engagement to simulate natural joint movements. It is now proposed that the femoral component has two transversely spaced sockets as bearing surfaces, and that the tibial component has two upstanding ball parts for respective articulation in the sockets. The ball parts can be separable, by the provision of stems engageable in apertures in the base part. Preferably, the sockets are enlarged relative to the balls to allow mutual rotation about the axis of the leg. Also, the sockets and balls can be of different material from their respective base parts, the latter suitably being of metal.

REFERENCES:
patent: 3506982 (1970-04-01), Steffee
patent: 3694821 (1972-10-01), Moritz
patent: 3795922 (1974-03-01), Herbert et al.
patent: 3824630 (1974-07-01), Johnston
patent: 3939496 (1976-02-01), Ling et al.
patent: 3979778 (1976-09-01), Stroot
patent: 4001896 (1977-01-01), Arkangel
patent: 4094017 (1978-06-01), Matthews et al.

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