University Eye Hospital, Centre of Ophthalmology, Eberhard-Karls University, Tübingen, Germany.
Br J Ophthalmol. 2010 Feb;94(2):167-9. doi: 10.1136/bjo.2009.162180.
The presented Z-suture is a simple, rapid and safe knotless technique that facilitates transscleral suture fixation of various intraocular implants in the ciliary sulcus, such as sutured intraocular lenses, artificial iris prostheses and iris diaphragms. As the knotless approach reliably avoids suture erosion, external fixation can be performed without any protecting scleral flaps or lamellar grooves. The needle is simply passed through the sulcus and the emerging polypropylene suture is secured in the sclera using a zigzag-shaped intrascleral suture (Z-suture). Each pass starts directly adjacent to the exiting site. Five passes are sufficient to reliably fix the suture so that it resists even maximum tractive forces. Once this procedure is done, the suture can be cut without any knot. By avoiding suture knots, and hence the need for intrascleral flaps, this knotless approach may help to reduce suture-related complications such as scleral atrophy, suture erosion and infections.
所介绍的 Z 字缝线是一种简单、快速且安全的无结技术，可方便在睫状沟内固定各种眼内植入物，如缝线式人工晶状体、人工虹膜假体和虹膜膈。由于无结方法可靠地避免了缝线侵蚀，因此可以进行外部固定，而无需任何保护的巩膜瓣或板层槽。针只需穿过巩膜沟，然后将出现的聚丙烯缝线用锯齿形巩膜缝线（Z 字缝线）固定在巩膜上。每次通过都直接紧邻出线部位。只需进行 5 次通过即可可靠固定缝线，使其能够抵抗最大牵引力。完成此操作后，无需打结即可剪断缝线。通过避免缝线结，以及因此避免需要巩膜瓣，这种无结方法可能有助于减少与缝线相关的并发症，如巩膜萎缩、缝线侵蚀和感染。
