Fluid absorption study in ultra-high molecular weight polyethylene (UHMWPE) sterilized and unsterilized acetabular cups

S. Affatato, C. Vandelli, B. Bordini, A. Toni

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The weight gain due to fluid absorption was measured in γ-sterilized, ethylene oxide (ETO) gas-sterilized, and unsterilized ultra-high molecular weight (UHMW) polyethylene acetabular cups. After about 2 months the total average fluid absorption gain of the polyethylene cups was: 1.76 ± 0.45 mg (average ± standard deviation) for the unsterilized polyethylene cups, 2.81 ± 0.95 mg for the γ-sterilized polyethylene cups and 1.51 ± 0.34 for the ETO gas-sterilized polyethylene cups. There was little difference in fluid absorption between the sterilized and unsterilized specimens. In particular, the γ-sterilized acetabular cups absorbed more than the ETO gas-sterilized and the unsterilized cups. However, the weight gain was higher in serum compared with that in water.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalProceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
Volume215
Issue number1
DOIs
Publication statusPublished - 2001

Fingerprint

Ultrahigh molecular weight polyethylenes
Polyethylene
Ethylene Oxide
Polyethylenes
Ethylene
Fluids
Gases
Weight Gain
Oxides
ultra-high molecular weight polyethylene
Water
Serum

Keywords

  • Fluid absorption
  • Hip simulator
  • Polyethylene absorption
  • Serum absorption
  • Water absorption

ASJC Scopus subject areas

  • Biomedical Engineering
  • Mechanical Engineering
  • Medicine(all)

Cite this

@article{4beb87e684ef4d1e86544fff7af1f61a,
title = "Fluid absorption study in ultra-high molecular weight polyethylene (UHMWPE) sterilized and unsterilized acetabular cups",
abstract = "The weight gain due to fluid absorption was measured in γ-sterilized, ethylene oxide (ETO) gas-sterilized, and unsterilized ultra-high molecular weight (UHMW) polyethylene acetabular cups. After about 2 months the total average fluid absorption gain of the polyethylene cups was: 1.76 ± 0.45 mg (average ± standard deviation) for the unsterilized polyethylene cups, 2.81 ± 0.95 mg for the γ-sterilized polyethylene cups and 1.51 ± 0.34 for the ETO gas-sterilized polyethylene cups. There was little difference in fluid absorption between the sterilized and unsterilized specimens. In particular, the γ-sterilized acetabular cups absorbed more than the ETO gas-sterilized and the unsterilized cups. However, the weight gain was higher in serum compared with that in water.",
keywords = "Fluid absorption, Hip simulator, Polyethylene absorption, Serum absorption, Water absorption",
author = "S. Affatato and C. Vandelli and B. Bordini and A. Toni",
year = "2001",
doi = "10.1243/0954411011533463",
language = "English",
volume = "215",
pages = "107--112",
journal = "Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine",
issn = "0954-4119",
publisher = "SAGE Publications Ltd",
number = "1",

}

TY - JOUR

T1 - Fluid absorption study in ultra-high molecular weight polyethylene (UHMWPE) sterilized and unsterilized acetabular cups

AU - Affatato, S.

AU - Vandelli, C.

AU - Bordini, B.

AU - Toni, A.

PY - 2001

Y1 - 2001

N2 - The weight gain due to fluid absorption was measured in γ-sterilized, ethylene oxide (ETO) gas-sterilized, and unsterilized ultra-high molecular weight (UHMW) polyethylene acetabular cups. After about 2 months the total average fluid absorption gain of the polyethylene cups was: 1.76 ± 0.45 mg (average ± standard deviation) for the unsterilized polyethylene cups, 2.81 ± 0.95 mg for the γ-sterilized polyethylene cups and 1.51 ± 0.34 for the ETO gas-sterilized polyethylene cups. There was little difference in fluid absorption between the sterilized and unsterilized specimens. In particular, the γ-sterilized acetabular cups absorbed more than the ETO gas-sterilized and the unsterilized cups. However, the weight gain was higher in serum compared with that in water.

AB - The weight gain due to fluid absorption was measured in γ-sterilized, ethylene oxide (ETO) gas-sterilized, and unsterilized ultra-high molecular weight (UHMW) polyethylene acetabular cups. After about 2 months the total average fluid absorption gain of the polyethylene cups was: 1.76 ± 0.45 mg (average ± standard deviation) for the unsterilized polyethylene cups, 2.81 ± 0.95 mg for the γ-sterilized polyethylene cups and 1.51 ± 0.34 for the ETO gas-sterilized polyethylene cups. There was little difference in fluid absorption between the sterilized and unsterilized specimens. In particular, the γ-sterilized acetabular cups absorbed more than the ETO gas-sterilized and the unsterilized cups. However, the weight gain was higher in serum compared with that in water.

KW - Fluid absorption

KW - Hip simulator

KW - Polyethylene absorption

KW - Serum absorption

KW - Water absorption

UR - http://www.scopus.com/inward/record.url?scp=0035065827&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035065827&partnerID=8YFLogxK

U2 - 10.1243/0954411011533463

DO - 10.1243/0954411011533463

M3 - Article

C2 - 11323978

AN - SCOPUS:0035065827

VL - 215

SP - 107

EP - 112

JO - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine

JF - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine

SN - 0954-4119

IS - 1

ER -