Maxillofacial Unit, Morriston Hospital, Swansea, Wales, UK.
Int J Oral Maxillofac Surg. 2011 Dec;40(12):1357-62. doi: 10.1016/j.ijom.2011.04.020. Epub 2011 Aug 31.
The authors present the clinical results of their method of customized reconstruction of orbital wall defects using titanium mesh or sheet. High resolution computed tomography (CT) data are imported and processed to create a three-dimensional (3D) image which is used to reconstruct the orbital defect. Mirror imaging of the air in the contralateral maxillary sinus is used to overcome artefact defects in the floor. A stereolithographic model is constructed, from which titanium mesh or sheet is shaped and sized to the required contours for implantation. Twenty-two patients were treated using this technique from 2003 to 2008. Postoperatively 10 patients reported early resolution of their diplopia. Six patients noticed significant improvement of their symptoms with mild residual diplopia in one direction only and at the extremes of gaze at final review. One patient required ocular muscle surgery. Enophthalmos resolved in eight of the nine cases. No patients developed enophthalmos or diplopia as a postoperative complication. The use of titanium mesh for orbital floor reconstruction has been shown to be safe and effective. Customized titanium implants accurately reproduce orbital contours thus restoring orbital volume. This reduces operative time and improves the functional and aesthetic outcomes of post-traumatic orbital reconstruction.
作者介绍了使用钛网或钛板定制重建眼眶壁缺损的临床结果。高分辨率计算机断层扫描(CT)数据被导入并处理,以创建三维(3D)图像,用于重建眼眶缺损。对侧上颌窦内空气的镜像成像用于克服眶底的伪影缺陷。从立体光刻模型构建钛网或钛板,并根据需要的轮廓进行塑形和尺寸调整,以进行植入。2003 年至 2008 年期间,22 名患者采用该技术进行治疗。术后 10 名患者报告说斜视早期得到缓解。6 名患者注意到症状明显改善,仅在一个方向有轻微的残留斜视,在最终复查时眼球运动的极端位置也有斜视。1 名患者需要进行眼外肌手术。9 例中的 8 例出现眼球内陷缓解。无患者发生术后并发症导致眼球内陷或斜视。钛网用于眶底重建已被证明是安全有效的。定制钛植入物准确地再现眼眶轮廓,从而恢复眼眶容积。这减少了手术时间,并提高了创伤后眼眶重建的功能和美学效果。