Analysis of wear debris generated from the metal-on-metal hip joint

被引：0
|
作者：
Uo, Motohiro [1 ]
Watari, Fumio [1 ]
Asakura, Kiyotaka [2 ]
Katayama, Naoyuki [3 ]
Onodera, Shin [4 ]
Tohyama, Harukazu [4 ]
Hamada, Koichi [5 ]
Ohnuki, Somei [5 ]
机构：
[1] Department of Biomedical Materials and Engineering, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
[2] Catalyst Research Center, Hokkaido University, Sapporo, Japan
[3] Hokkaido Orthopedics Memorial Hospital, Sapporo, Japan
[4] Department of Sports Medicine and Joint Reconstruction Surgery, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
[5] Division of Materials Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
来源：
Nano Biomedicine | 2009年 / 1卷 / 02期
关键词：
Cobalt alloys - Metals - X ray absorption - Hip prostheses - Wear debris - Binary alloys;
D O I：
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中图分类号：
学科分类号：
摘要：
The elemental concentration, shape and chemical state of debris contained in the articular capsules of metal-on-metal hip joints were examined. Co derived from Co-Cr alloy was detected with high concentration. By TEM observation, some larger debris in several hundred nanometers and a lot of smaller debris smaller than several ten nanometers were observed. The debris could be observed in the severe metallosis region. Most of Co contained in the articular capsules could be estimated as the metallic state by fluorescence XAFS analysis, which provides high sensitivity for chemical state analysis. Therefore, the metallosis of the articular capsule could be assumed as mainly caused by the metallic debris.
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页码：133 / 136
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