Method for cementing an implant into bone

Details Method for cementing an implant into bone Method for cementing an implant into bone

1997-09-09

1999-12-21

Isabella, David J.

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

Implantable prosthesis

Bone

A61F 228

Patent

active

060051639

ABSTRACT:
In this method for cementing an implant into bone by means of an autopolymerising two-component bone cement the implant, in particular the stem of a hip prosthesis is preheated above room-temperature prior to its cementing into bone, preferably to at least 43.degree. C.
By this method the stem-cement interface is warmer than the bone-cement interface and consequently a stiff cement shell will form first around the stem and the cement will shrink towards the stem and away from the bone. The resulting reduction of porosity at the stem-cement interface improves significantly the fatigue life of the system.

REFERENCES:
patent: 4280233 (1981-07-01), Raab
patent: 4281420 (1981-08-01), Raab

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