Prosthetic fixation technique

Details Prosthetic fixation technique Prosthetic fixation technique

1979-07-16

1981-06-23

Serwin, Ronald

Surgery

Truss

Pad

3 1911, 128 92C, A61F 100

Patent

active

042741637

ABSTRACT:
In order to reduce the incidence of artificial joint failure at the interface where the prosthesis is bonded to the bone by cement, the artificial prosthesis is provided with openings, and is clamped in place to provide a peripheral seal around the end of the bone to which it is being secured. Then the cement is applied through the prosthesis under pressure, and the pressure is maintained until the cement hardens. The prosthesis may be provided with both input and output openings so that, as the cement is forced into the space between the prosthesis and the cortical bone structure, material including blood and marrow contents will be forced out the exit apertures and the pressurized cement will thereafter make good direct contact with both the bone and the prosthesis, to insure a lasting bond. The rim of the prosthesis and the matching bone surfaces may be specially prepared to provide a good pressure tight seal.

REFERENCES:
patent: 3866248 (1975-02-01), Kummer
patent: 3889665 (1975-06-01), Ling et al.
patent: 4065817 (1978-01-01), Branemark et al.

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