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作者介绍了一种新型的鼓膜至镫骨足板间小柱的组成及临床应用结果。多用途聚合物骨小柱的一端为自体皮质骨,柱的中央部包含一根金属丝为核心。其制作方法:内耳切口在颞骨鳞部的最低处皮质骨的表面钻一直径小于0.6mm,深约1mm的孔,在孔的周围钻一圈沟槽,槽的深度根据柱的长度而定,然后把聚合物小柱紧插小洞内,自槽底凿断,形成小骨帽。根据足板到鼓膜的距离修剪小柱的长度,即形成聚合物小骨柱赝复物。手术时先把镫骨足板前1/3处的粘膜切开略向外分离,再将骨小柱的金属丝端置放于足板的前1/3处;在小柱的周围卵圆窗龛上放一小片筋膜,以固定小柱,柱的一端紧密贴于鼓膜内面。
The authors present a new type of tympanic to stapes footplate between the composition and clinical application of the results. Multi-purpose polymer bone cartridges at one end of the autologous cortical bone, the central part of the column contains a metal wire as the core. The preparation method: the inner ear incision in the lowest part of the temporal cortical bone cortical bone surface drilled a diameter of less than 0.6mm, a hole of about 1mm deep, drill a circle around the hole groove, the depth of the groove according to the length of the column, Then the polymer cartridge tightly inserted into the hole, from the bottom of the chisel off to form a small bone cap. According to the distance from the plate to the tympanic membrane pruning the length of the small column, that is, the formation of polymer small column prosthesis. Surgical strabotectomy before the first 1/3 at the mucosa incision slightly outward separation, and then the small bone column metal placed in the foot of the first 1/3 of the foot in the column around the oval window Put a small piece of fascia on the niche to fix the column, one end of the column closely attached to the inner surface of the tympanic membrane.