Bulk hydroxyapatite. Evaluation of its use as a bone graft substitute

L. C. Jones; E. Shors; D. S. Hungerford

Bulk hydroxyapatite. Evaluation of its use as a bone graft substitute

L. C. Jones, E. Shors, D. S. Hungerford

School of Medicine

Research output: Contribution to conference › Paper › peer-review

Abstract

It was the principal objective of this study to evaluate the use of a preformed block of hydroxyapatite in an animal model of a porous-coated implant with an interface gap. It is shown that extensive ingrowth into the porous hydroxyapatite, regardless of pore size, was observed. The lack of ingrowth into the porous CoCrMo plug as demonstrated histologically was confirmed by the radiologic and biomechanical data. It is possible that the HA-metal interface presents another barrier for the bone to cross. Additionally, the HA provided may be so compact and interwoven with pores that it takes longer for the bone to bridge the HA sleeve.

Original language	English (US)
Number of pages	1
State	Published - Jan 1 1991
Event	17th Annual Meeting of the Society for Biomaterials in conjunction with the 23rd International Biomaterials Symposium - Scottsdale, AZ, USA Duration: May 1 1991 → May 5 1991

Other

Other	17th Annual Meeting of the Society for Biomaterials in conjunction with the 23rd International Biomaterials Symposium
City	Scottsdale, AZ, USA
Period	5/1/91 → 5/5/91

ASJC Scopus subject areas

Materials Science(all)

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Cite this

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abstract = "It was the principal objective of this study to evaluate the use of a preformed block of hydroxyapatite in an animal model of a porous-coated implant with an interface gap. It is shown that extensive ingrowth into the porous hydroxyapatite, regardless of pore size, was observed. The lack of ingrowth into the porous CoCrMo plug as demonstrated histologically was confirmed by the radiologic and biomechanical data. It is possible that the HA-metal interface presents another barrier for the bone to cross. Additionally, the HA provided may be so compact and interwoven with pores that it takes longer for the bone to bridge the HA sleeve.",

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AU - Shors, E.

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N2 - It was the principal objective of this study to evaluate the use of a preformed block of hydroxyapatite in an animal model of a porous-coated implant with an interface gap. It is shown that extensive ingrowth into the porous hydroxyapatite, regardless of pore size, was observed. The lack of ingrowth into the porous CoCrMo plug as demonstrated histologically was confirmed by the radiologic and biomechanical data. It is possible that the HA-metal interface presents another barrier for the bone to cross. Additionally, the HA provided may be so compact and interwoven with pores that it takes longer for the bone to bridge the HA sleeve.

AB - It was the principal objective of this study to evaluate the use of a preformed block of hydroxyapatite in an animal model of a porous-coated implant with an interface gap. It is shown that extensive ingrowth into the porous hydroxyapatite, regardless of pore size, was observed. The lack of ingrowth into the porous CoCrMo plug as demonstrated histologically was confirmed by the radiologic and biomechanical data. It is possible that the HA-metal interface presents another barrier for the bone to cross. Additionally, the HA provided may be so compact and interwoven with pores that it takes longer for the bone to bridge the HA sleeve.

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