Dynamic virtual simulation of the occurrence and severity of edge loading in hip replacements associated with variation in the rotational and translational surgical position

Leng, Joanna; Al-Hajjar, Mazen; Wilcox, Ruth K.; Jones, Alison C.; Barton, D.C.; Fisher, John

doi:10.1177/0954411917693261

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…The force–indentation relationship for contact interfaces is a major factor in developing the multibody dynamics models accounting for edge loading in hip joint replacements (Leng et al, ; Liu et al, ; Sariali, Stewart, Jin, & Fisher, ). The present study supports the use of Hertz contact model as a good approximation for the hard‐on‐hard bearings with varied bearing geometries.…”

Section: Discussionmentioning

confidence: 99%

The effect of femoral head size on edge loading in metal‐on‐metal hip joint replacement under dynamic separation conditions

Lian

Li³

et al. 2019

J Biomed Mater Res

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Edge loading that occurs in hip joint replacements due to dynamic separation of the joint bearings has been shown to cause severe wear for meal-on-metal bearings. In the present study, the multibody dynamics model for metal-on-metal (MoM) hip joints with a medial-lateral translational mismatch in the centers of rotation of the cup and head has been developed to predict the dynamic separation and contact force of edge loading under gait loading conditions. The effects of larger head diameters (28-55 mm), in combination with the translational mismatch (0-4 mm) and varied cup inclination angles (45 -65 ), on edge loading of MoM bearings have been computationally investigated. For the given translational mismatch, increasing head diameters results in negligible effects on the dynamic separation, contact force and severity of edge loading. Increasing head size also leads to increased offset loading torque which has been found to reach at the level that may cause cup loosening under larger translational mismatch at 4 mm. The result highlights the importance of the cup inclination angle of 45 and a lower translational mismatch to avoid severe edge loading. K E Y W O R D Sedge loading, hip joint replacement, metal-on-metal, multibody dynamics, wear

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Section: Discussionmentioning

confidence: 99%

The effect of femoral head size on edge loading in metal‐on‐metal hip joint replacement under dynamic separation conditions

Lian

Li³

et al. 2019

J Biomed Mater Res

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“…There is a need to develop an improved understanding of the mechanisms underlying edge loading damage, to inform future device design and testing. Dynamic rigid modelling studies have shown that the inclusion of damping effects, such as inertia or friction, increases the peak force transferred through the edge of the cup during heel-strike [19][20][21]. This additional force is not captured in the studies using static modelling to analyse edge loading effects.…”

Section: Pagementioning

confidence: 99%

Importance of dynamics in the finite element prediction of plastic damage of polyethylene acetabular liners under edge loading conditions

Jahani

Etchels

Wang

et al. 2021

Medical Engineering & Physics

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A computational parametric study on edge loading in ceramic-on-ceramic total hip joint replacements

Liu

Wang

2018

Journal of the Mechanical Behavior of Biomedical Materials

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Dynamic virtual simulation of the occurrence and severity of edge loading in hip replacements associated with variation in the rotational and translational surgical position

Cited by 3 publications

References 30 publications

The effect of femoral head size on edge loading in metal‐on‐metal hip joint replacement under dynamic separation conditions

The effect of femoral head size on edge loading in metal‐on‐metal hip joint replacement under dynamic separation conditions

Importance of dynamics in the finite element prediction of plastic damage of polyethylene acetabular liners under edge loading conditions

A computational parametric study on edge loading in ceramic-on-ceramic total hip joint replacements

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