The effect of cup outer sizes on the contact mechanics and cement fixation of cemented total hip replacements

Highlights • Two cup designs with cup outer diameters of 40 and 43 mm were modelled. • The differences of peak stresses in the acetabular cup between the two cup designs were negligible. • The stresses of the cement mantle for cup design of 40 mm were higher than that of 43 mm. • The differences of...

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Veröffentlicht in:Medical engineering & physics 2015-10, Vol.37 (10), p.1008-1014
Hauptverfasser: Hua, Xijin, Li, Junyan, Wang, Ling, Wilcox, Ruth, Fisher, John, Jin, Zhongmin
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Sprache:eng
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Zusammenfassung:Highlights • Two cup designs with cup outer diameters of 40 and 43 mm were modelled. • The differences of peak stresses in the acetabular cup between the two cup designs were negligible. • The stresses of the cement mantle for cup design of 40 mm were higher than that of 43 mm. • The differences of the stresses in the cement mantle between the two cup designs were compared to the clinical performance of the two cup designs.
ISSN:1350-4533
1873-4030
DOI:10.1016/j.medengphy.2015.08.003