Augmentation for an orthopaedic implant

Details Augmentation for an orthopaedic implant Augmentation for an orthopaedic implant

1994-02-23

1996-08-27

Willse, David H.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

623 11, 623 16, 623 18, 606 72, 606 73, A61F 238

Patent

active

055496857

ABSTRACT:
An augment for an orthopaedic implant contains a countersunk through hole. A fixation means interacts with the countersink to produce both downward and lateral forces on the augment. As the fixation means is tightened, it abuts one side of the countersink so that it exerts both a downward force and a lateral force on the augment. The lateral force causes the augment to press tightly against the implant. Because of the combination of downward and lateral forces, the augment strongly resists displacement and rotation.

REFERENCES:
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patent: 4936847 (1990-06-01), Manginelli
patent: 4936853 (1990-06-01), Fabian et al.
patent: 4950298 (1990-08-01), Gustilo et al.
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patent: 5152797 (1992-10-01), Luckman et al.
patent: 5269784 (1993-12-01), Mast
patent: 5346492 (1994-09-01), Morgan
patent: 5380323 (1995-01-01), Howland
Biomet, Inc.-Maxim, The Complete Knee System-c1992.

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