Bony nasolacrimal duct dehiscence in functional endoscopic sinus surgery: radiological study and discussion of surgical implications
Date
2015
Authors
Ali, M.
Murphy, J.
Wormald, P.
Psaltis, A.
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Journal article
Citation
Journal of Laryngology and Otology, 2015; 129(Suppl. 3):S35-S40
Statement of Responsibility
M J Alia, J Murphy, P J Wormald, and A J Psaltis
Conference Name
Abstract
OBJECTIVES: To analyse the radiological features of the bony nasolacrimal duct before and after functional endoscopic sinus surgery, and document the incidence of surgically induced dehiscence. METHODS: A retrospective case series analysis was conducted of 63 consecutive patients who underwent uncinectomy as a part of 118 functional endoscopic sinus surgical procedures. All patients underwent pre- and post-operative computed tomography scans. Axial computed tomography images at the level of maxillary sinus were evaluated for the presence of bony nasolacrimal duct dehiscence, osteitis and completeness of uncinectomy. RESULTS: The rate of nasolacrimal duct dehiscence prior to surgery was 6.8 per cent (8 out of 118 cases). Nasolacrimal duct dehiscence as a consequence of surgery was observed in 3.3 per cent of cases (4 out of 118), with a further 4.2 per cent (5 out of 118) showing post-operative reactive bony change of the nasolacrimal duct in the absence of dehiscence. CONCLUSION: The incidence of nasolacrimal duct injury observed was much lower than that previously reported in the literature.
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Published online: 08 April 2015
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© JLO (1984) Limited 2015