1231 人工股関節における摩擦部位の温度が摩耗特性と摩耗粉形態に及ぼす影響(G02-5 関節と軟骨(2),G02 バイオエンジニアリング)

概要

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The temperature of femoral head in artificial hip joints rose up more than 40℃ during walking. If the temperature of 40℃ or higher is maintained for a long time, it may become the cause of the increase of wear. The purpose of this study was to investigate the influence of the temperature of friction part in femoral head on wear characteristics and wear debris in artificial hip joints. The temperature of friction part was adjusted at 30, 36, 40 and 42℃ with a temperature controller. Lubricating liquids used a phosphate buffered saline (PBS) and the PBS that contained the principal constituents of synovial fluid. Wear depth increased with the increase of the temperature of friction part. There were no significant differences in the wear debris between temperatures of 30 and 42℃.
2005-09-18