Simulator test of artificial joints

✍ Scribed by Tetsuya Tateishi; Koji Hyodo; Kazuo Kondo; Kazunori Miura

• Book ID: 103968731
• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 441 KB
• Volume: 1
• Category: Article
• ISSN: 0928-4931
• DOI: 10.1016/0928-4931(94)90042-6

✦ Synopsis

This report deals with the characteristic changes in frictional torque of a ceramic (alumina and zirconia) ball head against an UHMWPE socket which was subjected to intense creep deformation under continuous loading in 37 °C pseudo-extracellular fluid (PECF). As a result, the ceramic ball heads exhibited lower friction compared with a more usual metal ball head. A static vertical load caused much greater frictional torque compared with vibrating loading condition. The zirconia ball head withstood a pulsating fatigue load of 12 kN for up to 10 9 cycles.