Finite element modelling for assessing effect of acetabular component orientation on the basic stress path above acetabular dome.

ABSTRACT:

Objective

To investigate the effect of acetabular component orientation on the basic stress path above the acetabular dome in the recommended safe zone.

Methods

A subject-specific normal hip finite element model was generated and a convergence study carried out to determine the number of material properties for trabecular bone using a normal hip model. Four abduction angles (35°, 40°, 45° and 50°) and four anteversion angles (10°, 15°, 20° and 25°) from the recommended safe zone of acetabular cup orientation were chosen to simulate acetabular reconstruction. The distribution and level of periacetabular stress was assessed using a normal hip model as a control and 16 reconstructed acetabula in simulated single-legged stances.

Results

The error of the average stress bet

SUBMITTER: Nie Y 

PROVIDER: S-EPMC6583537 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature