Affiliations: [a] Department of Ophthalmology, Shanxi Bethune Hospital, Taiyuan, Shanxi, China | [b] Department of General Surgery, The First Affiliated Hospital of Shanxi Medical University, Taiyuan, Shanxi, China | [c] Department of Ophthalmology, Changzhi Aier Eye Hospital, Changzhi, Shanxi, China
Correspondence:
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Corresponding author: Lu Yang, Department of Ophthalmology, Changzhi Aier Eye Hospital, Changzhi, Shanxi, China. E-mail: wei22liang2022@163.com.
Note: [1] These authors contributed equally to this study.
Abstract: BACKGROUND: Orbital blowout fracture is common in ocular trauma. Accurate measurement of orbital volume after fracture is key in improving intraocular correction. OBJECTIVE: This study aims to explore the impact of 3D reconstruction technology in restoring normal exophthalmos in patients with old orbital wall fractures. METHODS: A total of 31 patients were randomly divided into an experimental group (n= 15) and a control group (n= 16). For orbital wall repair and reconstruction, the conventional group used the conventional surgical scheme, and the 3D group used 3D printing technology. RESULTS: There was no statistical difference between the preoperative mean extraocular muscle volume of the healthy eye and the affected eye. However, the mean orbital volume (24.76 vs 27.11, P= 0.005) and mean retrobulbar fat volume (17.53 vs 16.42, P= 0.006) were significantly different between the healthy eye and the affected eye. After an average follow-up of 16 weeks, the differences in pre- and post-surgery exophthalmos in the two groups were 0.42 ± 0.08 mm and 1.63 ± 0.51 mm, respectively. The difference between the two groups was statistically significant (t= 4.42, P= 0.003). The complications were not statistically different. CONCLUSION: Using 3D reconstruction technology preoperatively can significantly improve exophthalmos in patients with old orbital wall fractures.
Keywords: Orbital wall fracture, old, exophthalmos, 3D reconstruction
