Characterization of powder components of commercial bone cements.
Characterization of powder components of commercial bone cements.
复制标题
商用骨水泥粉末成分的表征。
DOI：
10.4012/dmj.20.345
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发表时间：
2001
影响因子：
2.5
通讯作者：
A. Ohyama
中科院分区：
文献类型：
--
作者：
Y. Imai;A. Ohyama
丙烯酸骨水泥已被用于骨科手术，但对其基本特性，特别是粉末成分缺乏详细的信息。本研究采用扫描电子显微镜、核磁共振波谱、尺寸排斥层析、高效液相色谱仪和差示扫描量热仪对日本市售的7种骨水泥的粉末成分进行了形态、聚合物结构和相对分子质量、残留单体和过氧化苯甲酰(BPO)含量以及热性能的表征。7种骨水泥在聚合物结构和相对分子质量上存在较大差异，尤其是在BPO含量和聚合物颗粒的形状、大小和分布等形态上存在较大差异。结果发现，BPO的含量并不总是与制造商在包装上给出的值一致。
Acrylic bone cements have been used in orthopedic surgery without detailed information on their basic characteristics, especially on their powder components. In this study, the powder components of seven bone cements available on the market in Japan were characterized for morphology, polymer structure and molecular weight, content of residual monomer and benzoyl peroxide (BPO), and thermal properties using scanning electron microscopy, nuclear magnetic resonance spectroscopy, size exclusion chromatography, high performance liquid chromatography, and differential scanning calorimetry, respectively. Considerable differences between the seven bone cements were found in polymer structure and molecular weight, and especially in BPO content and in the morphology of the polymer particles such as shape, size and distribution. It was found that the BPO content was not always in agreement with the value given by the manufacturers on the package.