Microhardness evaluations of the bone growing into porous implants

S. Stea, C. Tarabusi, G. Ciapetti, A. Pizzoferrato, A. Toni, A. Sudanese

Research output: Contribution to journalArticle

Abstract

Small cylinders of a new composite porous material consisting of a dense alumina core coated with two layers of beads of the same material, bonded to each other and to the underlying surface by a high-temperature melting glass have been implanted in the proximal femurs of rabbits. The explants were carried out 1, 4, 6, 8, and 18 weeks after surgery. The bone fragment containing the implant was embedded in methyl methacrylate without performing decalcification, and morphological observations were carried out. These showed that four weeks after surgery it is already possible to observe the development of bone spicules in the implant porosities. Along with these studies, microhardness measurements were carried out by using a microhardness tester connected to an image analyser. The mineralized tissue in close contact with the implant showed, one month after surgery, a compression strength similar to that of healthy bone.

Original languageEnglish
Pages (from-to)252-254
Number of pages3
JournalJournal of Materials Science: Materials in Medicine
Volume3
Issue number4
DOIs
Publication statusPublished - Jul 1992

Fingerprint

Microhardness
Surgery
Bone
Bone and Bones
Methacrylates
Aluminum Oxide
Porosity
Bone Development
Femur
Freezing
Glass
Melting point
Porous materials
Alumina
Tissue
Rabbits
Temperature
Composite materials

ASJC Scopus subject areas

  • Bioengineering
  • Chemical Engineering(all)
  • Biophysics

Cite this

Microhardness evaluations of the bone growing into porous implants. / Stea, S.; Tarabusi, C.; Ciapetti, G.; Pizzoferrato, A.; Toni, A.; Sudanese, A.

In: Journal of Materials Science: Materials in Medicine, Vol. 3, No. 4, 07.1992, p. 252-254.

Research output: Contribution to journalArticle

Stea, S. ; Tarabusi, C. ; Ciapetti, G. ; Pizzoferrato, A. ; Toni, A. ; Sudanese, A. / Microhardness evaluations of the bone growing into porous implants. In: Journal of Materials Science: Materials in Medicine. 1992 ; Vol. 3, No. 4. pp. 252-254.
@article{3f6f57e14204496b85c46b7c5443e314,
title = "Microhardness evaluations of the bone growing into porous implants",
abstract = "Small cylinders of a new composite porous material consisting of a dense alumina core coated with two layers of beads of the same material, bonded to each other and to the underlying surface by a high-temperature melting glass have been implanted in the proximal femurs of rabbits. The explants were carried out 1, 4, 6, 8, and 18 weeks after surgery. The bone fragment containing the implant was embedded in methyl methacrylate without performing decalcification, and morphological observations were carried out. These showed that four weeks after surgery it is already possible to observe the development of bone spicules in the implant porosities. Along with these studies, microhardness measurements were carried out by using a microhardness tester connected to an image analyser. The mineralized tissue in close contact with the implant showed, one month after surgery, a compression strength similar to that of healthy bone.",
author = "S. Stea and C. Tarabusi and G. Ciapetti and A. Pizzoferrato and A. Toni and A. Sudanese",
year = "1992",
month = "7",
doi = "10.1007/BF00705289",
language = "English",
volume = "3",
pages = "252--254",
journal = "Journal of Materials Science: Materials in Medicine",
issn = "0957-4530",
publisher = "Springer Netherlands",
number = "4",

}

TY - JOUR

T1 - Microhardness evaluations of the bone growing into porous implants

AU - Stea, S.

AU - Tarabusi, C.

AU - Ciapetti, G.

AU - Pizzoferrato, A.

AU - Toni, A.

AU - Sudanese, A.

PY - 1992/7

Y1 - 1992/7

N2 - Small cylinders of a new composite porous material consisting of a dense alumina core coated with two layers of beads of the same material, bonded to each other and to the underlying surface by a high-temperature melting glass have been implanted in the proximal femurs of rabbits. The explants were carried out 1, 4, 6, 8, and 18 weeks after surgery. The bone fragment containing the implant was embedded in methyl methacrylate without performing decalcification, and morphological observations were carried out. These showed that four weeks after surgery it is already possible to observe the development of bone spicules in the implant porosities. Along with these studies, microhardness measurements were carried out by using a microhardness tester connected to an image analyser. The mineralized tissue in close contact with the implant showed, one month after surgery, a compression strength similar to that of healthy bone.

AB - Small cylinders of a new composite porous material consisting of a dense alumina core coated with two layers of beads of the same material, bonded to each other and to the underlying surface by a high-temperature melting glass have been implanted in the proximal femurs of rabbits. The explants were carried out 1, 4, 6, 8, and 18 weeks after surgery. The bone fragment containing the implant was embedded in methyl methacrylate without performing decalcification, and morphological observations were carried out. These showed that four weeks after surgery it is already possible to observe the development of bone spicules in the implant porosities. Along with these studies, microhardness measurements were carried out by using a microhardness tester connected to an image analyser. The mineralized tissue in close contact with the implant showed, one month after surgery, a compression strength similar to that of healthy bone.

UR - http://www.scopus.com/inward/record.url?scp=3743124504&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3743124504&partnerID=8YFLogxK

U2 - 10.1007/BF00705289

DO - 10.1007/BF00705289

M3 - Article

AN - SCOPUS:3743124504

VL - 3

SP - 252

EP - 254

JO - Journal of Materials Science: Materials in Medicine

JF - Journal of Materials Science: Materials in Medicine

SN - 0957-4530

IS - 4

ER -