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Development of new design of the acetabular component for total hip replacement

Sykora J., Konvickova S., Daniel M.

Inżynieria Biomateriałów

2005

R. 8, nr 47-53

19--20

Strain state and strength of acetabular component of total hip-joint endoprosthesis.

Jira J., Jirova J., Micka M.

Acta of Bioengineering and Biomechanics

1999

Vol. 1, nr 2

79-83

The paper deals with the new cementless acetabular cup of the Beznoska type. This cup is made of 1 mm thick titanium covering and polyethylene inner layer. Good initil implant stability is ensured by titanium projections on the outer surface. The purpose of the experimental research was to measure strains at selected points on the outer surface of the artificial cup. A computation model enables us to analyse the strain state generated not only by concentrated load, but also by uniformly distributed load or by varing load. The aim of the research was to analyse the strain state of the acetabular component and to find out the limit loading for assesment of strength and the loss of stability of the cup structure.