Porous-coated artificial joints

Details Porous-coated artificial joints Porous-coated artificial joints

1989-09-05

1990-07-31

Cannon, Alan W.

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

Implantable prosthesis

Bone

623 16, 623 18, 623 23, A61F 228, A61F 230, A61F 234

Patent

active

049447599

ABSTRACT:
Artificial joint prostheses are provided whose outer surfaces include a screw thread which is interrupted by porous-coated columns so as to produce an alternating pattern of threaded columns adjacent to porous-coated columns. The threaded columns provide initial mechanical fixation of the prosthesis to bone and the porous-coated columns provide long-term fixation through bone ingrowth.

REFERENCES:
patent: 3840904 (1974-11-01), Tronzo
patent: 4038703 (1977-08-01), Bokros
patent: 4262369 (1981-04-01), Roux
patent: 4549319 (1985-10-01), Meyer
patent: 4550448 (1985-11-01), Kenna
patent: 4608053 (1986-08-01), Kelier
patent: 4645506 (1987-02-01), Link
patent: 4662891 (1987-05-01), Noiles
patent: 4698063 (1987-10-01), Link et al.
Sivash, K. M., Alloplasty of the Hip Joint, 1967, pp. 68-75, (original Russian article and translation).

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