Thursday, January 14, 2021

Lacrimal Duct Obstruction Caused by Nasomaxillary Fracture: A Retrospective Analysis of Consecutive 12 Patients by Computed Tomographic Dacryocystography

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Nasomaxillary fracture is a characteristic mid-facial fracture, and there are no reports showing the fracture damaging the nasolacrimal system (NLS). This report described nasomaxillary fracture cases with NLS damages, which were assessed by computed tomographic dacryocystography (CT-DCG). A retrospective co hort study of nasomaxillary fractures diagnosed by CT was conducted from 2007 to 2015. Twelve patients (mean age: 27.5 years) were found, and their clinical symptoms were as follows: nasal deformity in 10 patients, infra-orbital hypoesthesia in 7, epiphora in 5, and diplopia in one. CT-DCG was performed for 2 patients who complained epiphora, and obstruction was found in 1 patient. All patients underwent open reduction and internal fixation (ORIF), and epiphora in 5 patients was improved. One patient, however, complained epiphora postoperatively, which was supposed to be due to the unsuitable screw insertion. Since nasomaxillary fracture could give NLS obstruction, CT-DCG is useful for diagnosis. Although ORIF is an optimal treatment, attention is needed to avoid the lacrimal canal in screwing on the nasomaxillary buttress. Address correspondence and reprint requests to Yuki Hasegawa, MD, Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, 162-8666, Japan; E-mail: hasegawa.yuuki@twmu.ac.jp Received 30 June, 2020 Accepted 10 December, 2020 The authors report no conflicts of interest. Supplemental digital contents are available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Web site (www.jcraniofacialsurgery.com). © 2021 by Mutaz B. Habal, MD.
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