Schön R, Metzger M C, Zizelmann C, Weyer N, Schmelzeisen R
Department of Craniomaxillofacial Surgery, University Freiburg, Hugstetter Strasse 55, D-79106 Freiburg, Germany.
Int J Oral Maxillofac Surg. 2006 Nov;35(11):990-5. doi: 10.1016/j.ijom.2006.06.018. Epub 2006 Oct 17.
The purpose of this investigation is to present the results using preoperatively-formed titanium mesh implants for a true-to-original primary repair of extensive orbital floor and medial wall fractures. Individually preformed implants were used to repair extensive orbital floor injuries in 19 patients at the University Hospital, Freiburg. The form of the orbital floor and walls was analysed by preoperative diagnostic CT scan data. The form of the virtual reconstructed orbit was transformed into a model of the orbital cavity by a template machine. Postoperative imaging by or CT scan verified the exact 3D reconstruction of the orbital cavity 'true to original'. None of the patients demonstrated diplopia or enophthalmos postoperatively. Using individually preformed titanium mesh implants, the accuracy of the 3D orbital reconstruction was within a range of 1mm. The reconstruction using preformed implants proved to be less time consuming, more precise and less invasive, compared to 'free hand' efforts, for the repair of orbital injuries using titanium mesh and calvarial grafts.
本研究的目的是展示使用术前预制钛网植入物对广泛的眶底和眶内壁骨折进行原汁原味的一期修复的结果。在弗赖堡大学医院，采用个体化预制植入物对19例患者的广泛眶底损伤进行修复。通过术前诊断性CT扫描数据分析眶底和眶壁的形态。利用模板机将虚拟重建眼眶的形态转化为眶腔模型。术后通过CT扫描成像验证了眶腔“原汁原味”的精确三维重建。所有患者术后均未出现复视或眼球内陷。使用个体化预制钛网植入物时，三维眼眶重建的精度在1毫米范围内。与使用钛网和颅骨移植进行“徒手”修复眼眶损伤相比，使用预制植入物进行重建耗时更少、更精确且侵入性更小。
