Thumb joint prosthesis

Details Thumb joint prosthesis Thumb joint prosthesis

1989-05-01

1990-09-11

Green, Randall L.

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

Implantable prosthesis

Bone

623 23, A61F 242

Patent

active

049559168

ABSTRACT:
An improved carpal-metacarpal thumb joint prosthesis comprising carpal and metacarpal components which are tapered and threaded to facilitate fixation and to promote bone ingrowth together with a recess formed in the carpal component for holding a mesh disc to further enhance bone in-growth and having the carpal component formed generally U-shaped cavity containing an insert formed of ultrahigh molecular weight polyethylene which receives the spherical end of a tapered head which is securely received in a corresponding cavity within the metacarpal component.

REFERENCES:
patent: 3894297 (1975-07-01), Mittelmeier et al.
patent: 4276660 (1981-07-01), Laure
patent: 4304011 (1981-12-01), Whelan, III
patent: 4313232 (1982-02-01), Habal et al.
patent: 4352212 (1982-10-01), Greene et al.
patent: 4642122 (1987-02-01), Steffee

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