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Factors Affecting Initial Strength Performance of a Hydroxylapatite-Calcium Sulfate Hemihydrate Composite

Published online by Cambridge University Press:  26 February 2011

Timothy R. Devine  and
Keith A. Johnson
Timothy R. Devine
Affiliation:
USG Corporation, Research Center, 700 N. Highway 45, Libertyville, IL 60048
Keith A. Johnson
Affiliation:
USG Corporation, Research Center, 700 N. Highway 45, Libertyville, IL 60048
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Extract

Hydroxylapatite (HA) has been shown to be an efficacious bio-implant material in a number of surgical procedures[l]. A problem in the use of this material is that of particle migration away from the implant site. One method to resolve this problem is to mix the HA with calcium sulfate hemihydrate, CaSO4·0.5H2O, and allow the material to set to a gypsum/HA composite monolith[2]. The gypsum is resorbed by the body over a period of weeks, leaving the hydroxylapatite surrounded by newly generated tissue.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 110: Symposium M – Biomedical Materials and Devices , 1987 , 257
Copyright
Copyright © Materials Research Society 1988

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References

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