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Initial stability of press-fit acetabular components under rotational forces.

Publication ,  Journal Article
Fehring, KA; Owen, JR; Kurdin, AA; Wayne, JS; Jiranek, WA
Published in: J Arthroplasty
May 2014

The primary goal of this study was to determine the initial press-fit stability in acetabular components without screw fixation. Mechanical testing was performed with the implantation of press-fit acetabular components in cadaveric specimens. No significant difference was found in load to failure testing between 1 and 2 mm of under-reaming. However, there was significant variability in bending forces required to create 150 μm of micromotion ranging from 49.3 N to 214.4 N. This study shows that cups implanted in a press-fit fashion, which are felt to be clinically stable, have high degrees of variability in resisting load and may be at risk for loosening. There is a need for more objective intra-operative techniques to test cup stability.

Duke Scholars

Published In

J Arthroplasty

DOI

EISSN

1532-8406

Publication Date

May 2014

Volume

29

Issue

5

Start / End Page

1038 / 1042

Location

United States

Related Subject Headings

  • Prosthesis Design
  • Orthopedics
  • Middle Aged
  • Humans
  • Hip Prosthesis
  • Hip Joint
  • Cadaver
  • Biomechanical Phenomena
  • Arthroplasty, Replacement, Hip
  • Aged, 80 and over
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Fehring, K. A., Owen, J. R., Kurdin, A. A., Wayne, J. S., & Jiranek, W. A. (2014). Initial stability of press-fit acetabular components under rotational forces. J Arthroplasty, 29(5), 1038–1042. https://doi.org/10.1016/j.arth.2013.10.009
Fehring, Keith A., John R. Owen, Anton A. Kurdin, Jennifer S. Wayne, and William A. Jiranek. “Initial stability of press-fit acetabular components under rotational forces.J Arthroplasty 29, no. 5 (May 2014): 1038–42. https://doi.org/10.1016/j.arth.2013.10.009.
Fehring KA, Owen JR, Kurdin AA, Wayne JS, Jiranek WA. Initial stability of press-fit acetabular components under rotational forces. J Arthroplasty. 2014 May;29(5):1038–42.
Fehring, Keith A., et al. “Initial stability of press-fit acetabular components under rotational forces.J Arthroplasty, vol. 29, no. 5, May 2014, pp. 1038–42. Pubmed, doi:10.1016/j.arth.2013.10.009.
Fehring KA, Owen JR, Kurdin AA, Wayne JS, Jiranek WA. Initial stability of press-fit acetabular components under rotational forces. J Arthroplasty. 2014 May;29(5):1038–1042.
Journal cover image

Published In

J Arthroplasty

DOI

EISSN

1532-8406

Publication Date

May 2014

Volume

29

Issue

5

Start / End Page

1038 / 1042

Location

United States

Related Subject Headings

  • Prosthesis Design
  • Orthopedics
  • Middle Aged
  • Humans
  • Hip Prosthesis
  • Hip Joint
  • Cadaver
  • Biomechanical Phenomena
  • Arthroplasty, Replacement, Hip
  • Aged, 80 and over