High Precision Measurements of Total Hip Prosthesis Wear

Abstract

This paper presents a high precision method of measuring the wear of a total hip prosthesis and the volume of worn powder as a consequence of the prosthesis wear, so that the necessary precision is achieved in an acceptable amount of time. The measurement is done using the three-dimensional measuring machine (ALTO 700). This measurement was requested by the surgeon doctors, for possible improvements of the mounting method of the total hip prosthesis without damaging the bone. The paper shows the best measurement strategy to establish the wear of a total hip prosthesis that can cause the prosthesis weakening and eventually tear it off.

Keywords

• measured points trajectory
• alto 700
• white-black code
• color code
• metrosoft
• powder volume