Lenkauskas E
Case Western Reserve University School of Medicine, Cleveland, Ohio.
Am J Otol. 1990 Jul;11(4):290-6.
A multistrand wire spring prosthesis is presented for ossicular reconstruction. This device offers a workable solution not only to the ossiculoplasty problems associated with lateralization of the tympanic graft and displacement of the prosthesis, but also to other problems such as fixation to middle ear wall, tissue reaction, resorption, degeneration, biodegradation, or poor sound conduction, which are obviated using a stainless steel wire for the ossicular prosthesis. The spring also protects the inner ear from external trauma. Long-term reconstruction results of 14 cases using first generation coil spring prosthesis are presented. A freely mobile prosthesis head composed of cartilage with perichondrium on a wire-mesh platform distributes pressure evenly to the undersurface of the tympanic membrane and further ensures the prevention of pressure necrosis and extrusion. When the handle of the malleus is present, the head-loop assembly of the spring prosthesis is designed to securely capture the handle. There is no practical loss of sound energy passing through the spring. Over a period of 14 years none of the wire prosthesis was found to have eroded through the stapedial footplate.
本文介绍了一种用于听骨重建的多股钢丝弹簧假体。该装置不仅为与鼓膜移植物侧化和假体移位相关的鼓室成形术问题提供了可行的解决方案，还解决了其他问题，如固定到中耳壁、组织反应、吸收、退化、生物降解或声音传导不佳等，使用不锈钢丝作为听骨假体可避免这些问题。该弹簧还能保护内耳免受外部创伤。本文展示了14例使用第一代螺旋弹簧假体的长期重建结果。由软骨和软骨膜组成的可自由移动的假体头部位于金属丝网平台上，可将压力均匀地分布到鼓膜下表面，进一步确保防止压力性坏死和挤压。当锤骨柄存在时，弹簧假体的头环组件设计用于牢固地固定锤骨柄。通过弹簧的声能没有实际损失。在14年的时间里，没有发现钢丝假体有穿过镫骨足板的侵蚀现象。
