Non-constrained total joint system

Details Non-constrained total joint system Non-constrained total joint system

1993-01-19

1994-05-24

Isabella, David

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

Implantable prosthesis

Bone

623 18, A61F 242, A61F 230

Patent

active

053144864

ABSTRACT:
A non-constrained total joint prosthetic replacement device for metatarso-phalangeal joint. A first component comprises a convex-bearing surface and a rearwardly projecting stem configured to be received in the resected metatarsal bony shaft, and a second component includes a concave-bearing surface and a stem configured to be received within the resected phalangeal bony shaft. A non-bearing intermediate land offsets the convex-bearing surface of the first component from the stem, allowing a full range of anatomical motion notwithstanding the presence of bony overgrowth.

REFERENCES:
patent: 3889300 (1975-06-01), Smith
patent: 4021864 (1977-05-01), Waugh
patent: 4156296 (1979-05-01), Johnson et al.
patent: 4470158 (1984-09-01), Pappas et al.
patent: 4908031 (1990-03-01), Frisch
patent: 5061288 (1991-10-01), Berggren et al.

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