Anchoring shank for a bone implant

Details Anchoring shank for a bone implant Anchoring shank for a bone implant

1983-10-06

1985-07-23

Apley, Richard J.

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

Implantable prosthesis

Bone

3 191, 128 92C, A61F 104, A61F 504

Patent

active

045301166

ABSTRACT:
The anchoring shank is provided with a plurality of depressions which are arranged in fish-scale manner. Each depression is of arch-like shape with flanks which taper conically towards the proximal end of the shank. In addition, each depression merges into the shank at the distal end while having a trough parallel to the axis of the shank.
The depressions serve to improve the adhesion between the bone cement bed and the shank obviates looseness caused by shrinkage of the bone cement bed.

REFERENCES:
patent: 4199824 (1980-04-01), Niederer
patent: 4261063 (1981-04-01), Blanquaert
patent: 4404693 (1983-09-01), Zweymuller

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