Department of Orthopaedic Surgery, New York Downtown Hospital, 170 William Street, 8th Floor, New York, NY 10038. E-mail address:
J Bone Joint Surg Am. 2013 Nov 6;95(21):1981-7. doi: 10.2106/JBJS.L.01313.
➤ Over the past decade, porous tantalum has emerged as a powerful tool for reconstruction of the failed acetabular component.➤ The increased porosity, high coefficient of friction, and favorable elastic modulus of porous tantalum compared with traditional titanium mesh or cobalt chromium acetabular components allow for greater bone ingrowth potential, implant stability, and host bone preservation, respectively, in porous tantalum shells.➤ Several studies have confirmed the excellent early and midterm results of porous tantalum reconstruction for revision hip arthroplasty.➤ Depending on the degree of bone loss, excellent results have been achieved with modular or revision porous tantalum shells, tantalum shells with tantalum augments, and cup-cage constructs.➤ These implants and techniques are greatly changing the approach to acetabular revision surgery and are providing constructs with greater stability and more physiologic biomechanical properties than those achieved through the use of traditional reconstructive methods.
➤ 在过去的十年中，多孔钽已成为重建失败髋臼部件的有力工具。➤ 与传统钛网或钴铬髋臼部件相比，多孔钽的高孔隙率、高摩擦系数和理想弹性模量分别允许更大的骨长入潜力、植入物稳定性和宿主骨保存。➤ 多项研究证实了多孔钽重建在髋关节翻修中的优异早期和中期结果。➤ 根据骨质流失的程度，使用模块化或翻修多孔钽外壳、带有钽增强物的钽外壳以及杯笼结构，可以获得极好的效果。➤ 这些植入物和技术极大地改变了髋臼翻修手术的方法，并提供了比传统重建方法更稳定和更符合生理生物力学特性的结构。
