Evaluation of acetabular cup initial fixation by using resonance frequency principle

Abstract

The clinical practice shows that the loosening of acetabular cups is more frequent than stem loosening. With standard cups, the incidence of dislocation failure is highest in the first year after arthroplasty implantation.

The aim of the study was to quantitatively evaluate the implant-bone stability of a cementless acetabular cup prosthesis by using a device based on resonance frequency analysis.

Keywords

• resonance frequency analysis
• acetabular cup
• finite element analysis
• resonance frequency
• stability
• total hip replacement