In kneed of testing

Sunita P. Ahir, Gordon W. Blunn, Hani Haider, Peter S. Walker, Martin Browne, Peter J. Gregson

Research output: Contribution to journalArticle

Abstract

The standardized testing method for tibial trays, proposed by the International Standards Organizations (ISO), was evaluated. Two components were analyzed, the Kinematic and the Kinemax, one with a known history of failure by fracture and one that does not have such a record, respectively. Finite element analysis was used to calculate stresses in the two tibial tray designs subjected to the conditions proposed in the ISO test. The analyses suggest that the ISO test is unrealistic and that it exaggerates the stresses on the tibial baseplate. Using a load of 2000 N, the test cannot differentiate between tibial trays that are known to fail in vivo and trays that give successful clinical performance.

Original languageEnglish (US)
Pages (from-to)746-748
Number of pages3
JournalMaterials World
Volume6
Issue number12
StatePublished - Dec 1 1998

Fingerprint

Testing
Loads (forces)
Kinematics
Finite element method

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Science(all)
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Ahir, S. P., Blunn, G. W., Haider, H., Walker, P. S., Browne, M., & Gregson, P. J. (1998). In kneed of testing. Materials World, 6(12), 746-748.

In kneed of testing. / Ahir, Sunita P.; Blunn, Gordon W.; Haider, Hani; Walker, Peter S.; Browne, Martin; Gregson, Peter J.

In: Materials World, Vol. 6, No. 12, 01.12.1998, p. 746-748.

Research output: Contribution to journalArticle

Ahir, SP, Blunn, GW, Haider, H, Walker, PS, Browne, M & Gregson, PJ 1998, 'In kneed of testing', Materials World, vol. 6, no. 12, pp. 746-748.
Ahir SP, Blunn GW, Haider H, Walker PS, Browne M, Gregson PJ. In kneed of testing. Materials World. 1998 Dec 1;6(12):746-748.
Ahir, Sunita P. ; Blunn, Gordon W. ; Haider, Hani ; Walker, Peter S. ; Browne, Martin ; Gregson, Peter J. / In kneed of testing. In: Materials World. 1998 ; Vol. 6, No. 12. pp. 746-748.
@article{6cbf1e40354f4df68ce48e2fea288ac5,
title = "In kneed of testing",
abstract = "The standardized testing method for tibial trays, proposed by the International Standards Organizations (ISO), was evaluated. Two components were analyzed, the Kinematic and the Kinemax, one with a known history of failure by fracture and one that does not have such a record, respectively. Finite element analysis was used to calculate stresses in the two tibial tray designs subjected to the conditions proposed in the ISO test. The analyses suggest that the ISO test is unrealistic and that it exaggerates the stresses on the tibial baseplate. Using a load of 2000 N, the test cannot differentiate between tibial trays that are known to fail in vivo and trays that give successful clinical performance.",
author = "Ahir, {Sunita P.} and Blunn, {Gordon W.} and Hani Haider and Walker, {Peter S.} and Martin Browne and Gregson, {Peter J.}",
year = "1998",
month = "12",
day = "1",
language = "English (US)",
volume = "6",
pages = "746--748",
journal = "International Mining and Minerals",
issn = "0967-8638",
publisher = "IOM Communications Ltd.",
number = "12",

}

TY - JOUR

T1 - In kneed of testing

AU - Ahir, Sunita P.

AU - Blunn, Gordon W.

AU - Haider, Hani

AU - Walker, Peter S.

AU - Browne, Martin

AU - Gregson, Peter J.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The standardized testing method for tibial trays, proposed by the International Standards Organizations (ISO), was evaluated. Two components were analyzed, the Kinematic and the Kinemax, one with a known history of failure by fracture and one that does not have such a record, respectively. Finite element analysis was used to calculate stresses in the two tibial tray designs subjected to the conditions proposed in the ISO test. The analyses suggest that the ISO test is unrealistic and that it exaggerates the stresses on the tibial baseplate. Using a load of 2000 N, the test cannot differentiate between tibial trays that are known to fail in vivo and trays that give successful clinical performance.

AB - The standardized testing method for tibial trays, proposed by the International Standards Organizations (ISO), was evaluated. Two components were analyzed, the Kinematic and the Kinemax, one with a known history of failure by fracture and one that does not have such a record, respectively. Finite element analysis was used to calculate stresses in the two tibial tray designs subjected to the conditions proposed in the ISO test. The analyses suggest that the ISO test is unrealistic and that it exaggerates the stresses on the tibial baseplate. Using a load of 2000 N, the test cannot differentiate between tibial trays that are known to fail in vivo and trays that give successful clinical performance.

UR - http://www.scopus.com/inward/record.url?scp=0032301806&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032301806&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0032301806

VL - 6

SP - 746

EP - 748

JO - International Mining and Minerals

JF - International Mining and Minerals

SN - 0967-8638

IS - 12

ER -