Improvement of the long-term adhesive strength between metal stem and polymethylmethacrylate bone cement by a silica/silane interlayer system.
Improvement of the long-term adhesive strength between metal stem and polymethylmethacrylate bone cement by a silica/silane interlayer system.
复制标题
通过二氧化硅/硅烷夹层系统提高金属柄和聚甲基丙烯酸甲酯骨水泥之间的长期粘合强度。
DOI：
--
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Rudolf Marx
中科院分区：
文献类型：
--
作者：
Horst Fischer;D. C. Wirtz;Michael Weber;Michael N. Neuss;Fritz U Niethard;Rudolf Marx
临床上发现金属柄和骨水泥之间粘合强度的丧失是全髋关节置换术中的一个严重问题，并导致许多手术翻修。本研究的目的是提高该界面的长期粘合强度。推出了一种新型二氧化硅/硅烷夹层涂层系统。这些层旨在将金属柄表面粘合到聚甲基丙烯酸甲酯骨水泥上，几乎不会渗漏。对使用和不使用新涂层系统的不同骨水泥成对粘合的 TiAl6V4 和 CoCrMo 样本进行了体外拉伸试验。标本在等渗盐水溶液中保存长达 150 天。两种金属合金样品的粘合强度在储存 30 天内下降了约 75%，而这两种金属合金样品均采用常规胶结方式而没有采用新的夹层系统。使用新涂层，TiAl6V4 的高初始粘合强度（40-50 MPa）可以稳定超过 150 天。对于相同的 150 天储存期，涂层 CoCrMo 合金的粘合强度仍然下降，但下降幅度仅为未涂层 CoCrMo 合金的一半。如果通过等离子处理激活金属表面，则可以减少 CoCrMo 样品上粘合强度的损失。新的涂层界面系统可以帮助大大减少由于界面金属/聚甲基丙烯酸甲酯骨水泥的脱粘效应而引起的翻修手术。
A loss of adhesive strength between metal stem and bone cement is clinically found to be a serious problem in total hip arthroplasty and causes many operative revisions. The objective of this study was to improve the long-term adhesive strength at this interface. A new silica/silane interlayer coating system is introduced. The layers are designed to bond the metal stem surface to the polymethylmethacrylate bone cement marginally leakage free. In vitro tensile tests were performed on specimens of TiAl6V4 and CoCrMo that were cemented by pairs with different bone cements with and without the new coating system. The specimens were stored in isotonic saline solution up to 150 days. The adhesive strength decreased about 75% within 30 days of storage on specimens of both metal alloys that were conventionally cemented without the new interlayer system. With the new coating, the high initial adhesive strength (40-50 MPa) could be stabilized for TiAl6V4 over 150 days. For the same 150-day storage period, the adhesive strength of the coated CoCrMo alloy still decreased but the decrease was only half that experienced by the uncoated CoCrMo. The loss of adhesive strength on CoCrMo specimens could be reduced if the metal surface was activated by a plasma treatment. The new coating interface system could help to considerably reduce revision operations caused by debonding effects at the interface metal/polymethylmethacrylate bone cement.
影响因子：
2.4
作者：
Kenneth A. Mann;Donald L. Bartel;Timothy M. Wright;A. H. Burstein
通讯作者：
Kenneth A. Mann;Donald L. Bartel;Timothy M. Wright;A. H. Burstein