Department of Ophthalmology, Jilin University Second Hospital, Yatai Street, Changchun, 130000, Jilin, China.
BMC Surg. 2021 Mar 29;21(1):169. doi: 10.1186/s12893-020-01001-5.
With the continuous improvement of surgical instruments in vitrectomy, the use of a trocar and cannula not only optimizes the incision process but also facilitates insertion and withdrawal of instruments during the procedure. Nevertheless, incision-related complications have also been reported in the literature. However, cannula fractures during 25G+ minimally invasive vitrectomy have rarely been reported.
A 62-year-old man underwent 25G+ pars plana vitrectomy for proliferative diabetic retinopathy. At the beginning of the operation, we used a trocar with a cannula to perform the sclerotomy. After the trocar was pulled out, the cannula was not seen on the surface of the sclera. Thus the inside and outside of the eye were carefully searched. The broken cannula tip was found in the ciliary body corresponding to the superonasal sclerotomy site and was subsequently removed.
Awareness regarding the risk of intraoperative fractures of 25G+ minimally invasive ocular surgical instruments is imperative. Whenever a broken or missing cannula is encountered, the residual part should be immediately extracted to avoid revision surgeries and postoperative complications.
随着玻璃体切割术中手术器械的不断改进，套管的使用不仅优化了切口过程，而且便于在手术过程中插入和拔出器械。然而，文献中也报道了与切口相关的并发症。但是，25G+微创玻璃体切割术中套管断裂的情况很少见。
一名 62 岁男性因增殖性糖尿病视网膜病变接受 25G+ 经睫状体平坦部玻璃体切除术。手术开始时，我们使用带有套管的套管针进行巩膜穿刺。套管针拔出后，在巩膜表面看不到套管。因此，仔细检查了眼球的内外侧。在与超鼻上巩膜穿刺部位相对应的睫状体中发现了折断的套管尖端，并随后将其取出。
术中应意识到 25G+微创眼科手术器械骨折的风险。如果遇到折断或丢失的套管，应立即取出残留部分，以避免再次手术和术后并发症。
