QUANTITATIVE ASSESSMENT OF LOOSENING IN HIP ARTHROPLASTIES USING MECHANICAL VIBRATION DIAGNOSTICS

Funding Activity

Website
http://purl.org/au-research/grants/nhmrc/138711

Funding Status
Closed

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Funded Activity Summary

Recent advances and improvements made to the mechanical design of artificial joints have led to greater strength, fatigue life and wear resistance. However, this extension to the working life of joint replacements has led to patients becoming increasingly vulnerable to the problem of joint loosening. There are over 500 000 hip joint replacements performed every year, on a worldwide basis. Of these 7 to 13% will require revision surgery because of loosening at some stage of their working life. This is becoming a major concern to health services around the world since revision surgery is associated with a higher risk to the patient and costs are far greater than for the primary operation. Current diagnostic techniques using radiographic imaging are both invasive and lack diagnostic accuracy. The ability to detect joint loosening and to discriminate between the various causes of joint loosening following arthroplasty is of great importance to the success of subsequent care plans. This study will be the first in the world to assess the validity of a new diagnostic test that uses low energy mechanical vibration to quantify the degree of loosening in both components of the implanted hip joint. Once the technique has been proven it could readily be extended to evaluate the degree of fixation of other implanted prostheses used to replace the knee, ankle or joints of the upper limbs.

Funded Activity Details

Start Date: 01-01-2001

End Date: 01-01-2003

Funding Scheme: NHMRC Project Grants

Funding Amount: $185,665.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Biomechanical Engineering

ANZSRC Socio-Economic Objective (SEO)

There are no SEO codes available for this funding activity

Other Keywords

aseptic loosening | degenerative joint disease | diagnostic use | hip prosthesis | joint replacement | orthopaedic surgery | revision surgery | vibration

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