Argin Atila, Görür Kemal, Ozcan Cengiz, Arslan Emrah, Ozmen Cengiz, Vayisoglu Yusuf
Department of Ophtalmology, School of Medicine, Mersin University, Mersin, Turkey.
J Plast Reconstr Aesthet Surg. 2008 Jun;61(6):615-9. doi: 10.1016/j.bjps.2007.02.029. Epub 2007 Apr 25.
This study aims to investigate whether it is possible to create a critical size bone defect in external dacryocystorhinostomy (DCR), and also at what size a defect can be considered as being critical for a successful surgical outcome.
Eighteen patients undergoing 19 external dacryocystorhinostomies, with the creation of wide osteotomies, were enrolled in this retrospective study. A 2 x 2 cm bone defect, which was considered as the critical size, was created. The postoperative structure of the bone gap was evaluated by computed tomography in axial and coronal planes at least two years after surgery. Functional patency of the ostium was confirmed with irrigation and nasal endoscopic examination.
Thirteen female (72.2%) and five male (27.8%) patients underwent DCR. The patients were aged between 18 and 72 years old (mean+/-S.D.: 45.3+/-13.9). The follow-up time was between 24 and 48 months (mean 30.4 months). The areas of the gaps were between 1.21 and 4 cm(2) (mean+/-S.D.: 2.26+/-0.19).
The critical size bone defect (2 x 2 cm) might prevent restenosis in long term follow ups.
本研究旨在探讨在外部泪囊鼻腔造口术（DCR）中是否有可能制造出临界尺寸的骨缺损，以及多大尺寸的缺损可被视为对手术成功结果至关重要。
18例接受19次外部泪囊鼻腔造口术并进行广泛截骨的患者纳入本回顾性研究。制造了一个2×2厘米的骨缺损，该尺寸被视为临界尺寸。术后至少两年通过计算机断层扫描在轴向和冠状平面评估骨间隙的结构。通过冲洗和鼻内镜检查确认造口的功能通畅。
13名女性（72.2%）和5名男性（27.8%）患者接受了DCR。患者年龄在18至72岁之间（平均±标准差：45.3±13.9）。随访时间在24至48个月之间（平均30.4个月）。间隙面积在1.21至4平方厘米之间（平均±标准差：2.26±0.19）。
临界尺寸的骨缺损（2×2厘米）可能在长期随访中预防再狭窄。
