The use of tantalum porous metal implants for Paprosky 3A and 3B defects
The use of tantalum porous metal implants for Paprosky 3A and 3B defects
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DOI：
10.1016/j.arth.2007.04.024
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发表时间：
2007-09-01
影响因子：
3.5
通讯作者：
Schmidt, Robert H.
中科院分区：
文献类型：
--
作者：
Weeden, Steven H.;Schmidt, Robert H.
复杂的髋臼缺损很难重建。对于严重的骨盆缺陷，钽金属髋臼植入物可能比传统的植入物提供一种可行的解决方案。本次短期随访回顾，43例髋臼翻修术采用钽髋臼假体植入术。这些翻修包括33个Paprosky 3A型缺损，涉及30%-50%的宿主髋臼丢失，以及10个3B型缺损，具有相似或更大的骨丢失并伴有骨盆不连续。26例采用Tantulum髋臼组合式假体支撑。平均随访2.8年，42个假体稳定，1个因败血症松动失败。总成功率为98%。一次翻修是因为继发于脓毒症的松动；没有一次是因为无菌性松动而进行的。由高度多孔的金属钽制成的植入物提供了一种非常有利于骨长入的表面。结合使用模数扩充的能力。增加了支撑性和稳定性，这项技术可能会改变重建主要缺陷的方式。
Complex acetabular defects are difficult to reconstruct. For severe pelvic defects, tantalum metal acetabular implants may provide a viable solution over traditional implants. This short-term follow-up reviews, 43 acetabular revisions treated with tantalum acetabular implants. These revisions included 33 Paprosky type 3A defects, involving 30% to 50% of host acetabulum loss, and 10 type 3B defects,,having similar or greater bone loss with a pelvic discontinuity. Tantulum acetabular modular augments were used in 26 cases to support the shell. At a mean of 2.8 years follow-up, 42 components were stable, and 1 failed because of septic loosening. The overall success rate was 98%. One revision was performed because of loosening secondary to sepsis; none were performed for aseptic loosening. implants made from highly porous tantalum metal provide a surface that is highly conducive to bone ingrowth. Combined with the ability to use modular augments for. added support and stability, this technology may change the way major defects are reconstructed.